diff --git a/LCDd.conf b/LCDd.conf
index 7cbfbce..81f12d7 100644
--- a/LCDd.conf
+++ b/LCDd.conf
@@ -290,9 +290,10 @@ Size=20x4
 # For multiple displays: at what 'logical' lines do the individual displays
 # start.
 
-#extended=yes
-# If you want to use more than 3 HD44780 controllers on the LPT, you need to
-# specify this. See documentation.
+#ExtendedMode=yes
+# If you have a KS0073 or an other 'almost HD44780-compatible', set this
+# flag to get into extended mode (4-line linear).
+# This flag is NOT the old obsolete Extended option.
 
 #DelayMult=2
 # If your display is slow and cannot keep up with the flow of data from
diff --git a/server/drivers/hd44780-4bit.c b/server/drivers/hd44780-4bit.c
index 3679989..544cc48 100644
--- a/server/drivers/hd44780-4bit.c
+++ b/server/drivers/hd44780-4bit.c
@@ -99,7 +99,7 @@ hd_init_4bit (Driver *drvthis)
 	PrivateData *p = (PrivateData*) drvthis->private_data;
 	HD44780_functions *hd44780_functions = p->hd44780_functions;
 
-	int enableLines = EN1 | EN2;
+	int enableLines = EN1 | EN2 | EN3;
 
 	// Reserve the port registers
 	port_access_multiple(p->port,3);
@@ -109,47 +109,38 @@ hd_init_4bit (Driver *drvthis)
 	hd44780_functions->readkeypad = lcdstat_HD44780_readkeypad;
 
 	// powerup the lcd now
-	if (p->extIF) {
-		enableLines |= EN3;
-		port_out (p->port + 2, 0 ^ OUTMASK);
-	}
+	port_out (p->port + 2, 0 ^ OUTMASK);
 	port_out (p->port, 0x03);
 	if( p->delayBus ) hd44780_functions->uPause (p, 1);
 
+	/* We'll now send 0x03 a coulpe of times, 
+	 * which is in fact (FUNCSET | IF_8BIT) >> 4 */
 	port_out (p->port, enableLines | 0x03);
-	if (p->extIF)
-		port_out (p->port + 2, ALLEXT ^ OUTMASK);
+	port_out (p->port + 2, ALLEXT ^ OUTMASK);
 	if( p->delayBus ) hd44780_functions->uPause (p, 1);
 	port_out (p->port, 0x03);
-	if (p->extIF)
-		port_out (p->port + 2, 0 ^ OUTMASK);
+	port_out (p->port + 2, 0 ^ OUTMASK);
 	hd44780_functions->uPause (p, 15000);
 
 	port_out (p->port, enableLines | 0x03);
-	if (p->extIF)
-		port_out (p->port + 2, ALLEXT ^ OUTMASK);
+	port_out (p->port + 2, ALLEXT ^ OUTMASK);
 	if( p->delayBus ) hd44780_functions->uPause (p, 1);
 	port_out (p->port, 0x03);
-	if (p->extIF)
-		port_out (p->port + 2, 0 ^ OUTMASK);
+	port_out (p->port + 2, 0 ^ OUTMASK);
 	hd44780_functions->uPause (p, 5000);
 
 	port_out (p->port, enableLines | 0x03);
-	if (p->extIF)
-		port_out (p->port + 2, ALLEXT ^ OUTMASK);
+	port_out (p->port + 2, ALLEXT ^ OUTMASK);
 	if( p->delayBus ) hd44780_functions->uPause (p, 1);
 	port_out (p->port, 0x03);
-	if (p->extIF)
-		port_out (p->port + 2, 0 ^ OUTMASK);
+	port_out (p->port + 2, 0 ^ OUTMASK);
 	hd44780_functions->uPause (p, 100);
 
 	port_out (p->port, enableLines | 0x03);
-	if (p->extIF)
-		port_out (p->port + 2, ALLEXT ^ OUTMASK);
+	port_out (p->port + 2, ALLEXT ^ OUTMASK);
 	if( p->delayBus ) hd44780_functions->uPause (p, 1);
 	port_out (p->port, 0x03);
-	if (p->extIF)
-		port_out (p->port + 2, 0 ^ OUTMASK);
+	port_out (p->port + 2, 0 ^ OUTMASK);
 	hd44780_functions->uPause (p, 100);
 
 	// now in 8-bit mode...  set 4-bit mode
@@ -157,19 +148,17 @@ hd_init_4bit (Driver *drvthis)
 	if( p->delayBus ) hd44780_functions->uPause (p, 1);
 
 	port_out (p->port, enableLines | 0x02);
-	if (p->extIF)
-		port_out (p->port + 2, ALLEXT ^ OUTMASK);
+	port_out (p->port + 2, ALLEXT ^ OUTMASK);
 	if( p->delayBus ) hd44780_functions->uPause (p, 1);
 	port_out (p->port, 0x02);
-	if (p->extIF)
-		port_out (p->port + 2, 0 ^ OUTMASK);
+	port_out (p->port + 2, 0 ^ OUTMASK);
 	hd44780_functions->uPause (p, 100);
 
 	// Set up two-line, small character (5x8) mode
-	hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | TWOLINE | SMALLCHAR );
+	hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_4BIT | TWOLINE | SMALLCHAR );
 	hd44780_functions->uPause (p, 40);
 
-	common_init (p);
+	common_init (p, IF_4BIT);
 
 	if (p->have_keypad) {
 		// Remember which input lines are stuck
@@ -196,10 +185,7 @@ lcdstat_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned char
 
 	if (displayID <= 3) {
 		if (displayID == 0) {
-			enableLines = EnMask[0] | EnMask[1];
-			if (p->extIF) {
-				enableLines |= EnMask[2];
-			}
+			enableLines = EnMask[0] | EnMask[1] | EnMask[2];
 		} else {
 			enableLines = EnMask[displayID - 1];
 		}
@@ -217,11 +203,12 @@ lcdstat_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned char
 		port_out (p->port, portControl | l);
 	}
 
-	if (p->extIF && (displayID == 0 || displayID >= 4)) {
-		if (displayID == 0)
+	if (p->numDisplays > 3) {
+		if (displayID == 0) {
 			enableLines = ALLEXT;
-		else
+		} else {
 			enableLines = EnMask[(displayID - 1)];
+		}
 
 		port_out (p->port, portControl | h);
 		if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
@@ -251,7 +238,8 @@ unsigned char lcdstat_HD44780_readkeypad (PrivateData *p, unsigned int YData)
 	// 10 bits output or 6 bits if >=3 displays
 	// Convert the positive logic to the negative logic on the LPT port
 	port_out (p->port, ~YData & 0x003F );
-	if (!p->extIF) {
+	if (p->numDisplays<=3) {
+		// Can't combine >3 displays with >6 keypad output lines
 		port_out (p->port + 2, ( ((~YData & 0x03C0) << 6 )) ^ OUTMASK);
 	}
 	if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
diff --git a/server/drivers/hd44780-ext8bit.c b/server/drivers/hd44780-ext8bit.c
index 084fa77..2b98bcc 100644
--- a/server/drivers/hd44780-ext8bit.c
+++ b/server/drivers/hd44780-ext8bit.c
@@ -104,7 +104,7 @@ hd_init_ext8bit (Driver *drvthis)
 	hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_8BIT | TWOLINE | SMALLCHAR);
 	hd44780_functions->uPause (p, 40);
 
-	common_init (p);
+	common_init (p, IF_8BIT);
 
 	if (p->have_keypad) {
 		// Remember which input lines are stuck
@@ -156,10 +156,11 @@ unsigned char lcdtime_HD44780_readkeypad (PrivateData *p, unsigned int YData)
 
 	sem_wait (semid);
 
-	// 10 bits output or 8 bits if >=3 displays
+	// 10 bits output or 8 bits if >=2 displays
 	// Convert the positive logic to the negative logic on the LPT port
 	port_out (p->port, ~YData & 0x00FF );
-	if (!p->extIF) {
+	if (p->numDisplays<=2) {
+		// Can't combine >3 displays with >8 keypad output lines
 		port_out (p->port + 2, ( ((~YData & 0x0100) >> 8) | ((~YData & 0x0200) >> 6)) ^ OUTMASK);
 	}
 	if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
diff --git a/server/drivers/hd44780-low.h b/server/drivers/hd44780-low.h
index 0411023..28801ec 100644
--- a/server/drivers/hd44780-low.h
+++ b/server/drivers/hd44780-low.h
@@ -78,10 +78,10 @@ typedef struct driver_private_data {
 	int *dispSizes;
 
 	// Keypad, backlight extended interface and delay options
-	char have_keypad;	 // off by default
-	char have_backlight; // off by default
-	char extIF;		 // off by default
-	char have_output;	 // have extra output port (off by default)
+	char have_keypad;	// off by default
+	char have_backlight;	// off by default
+	char have_output;	// have extra output port (off by default)
+	char ext_mode;		// use of extended mode required for some weird controllers
 	int delayMult;	 // Delay multiplier for slow displays
 	char delayBus;	 // Delay if the computer can send data too fast over
 				 // its bus to LPT port
@@ -141,7 +141,7 @@ typedef struct hwDependentFns {
 } HD44780_functions;				  /* for want of a better name :-) */
 
 
-void common_init (PrivateData *p);
+void common_init (PrivateData *p, unsigned char if_bit);
 
 
 // commands for senddata
@@ -158,7 +158,7 @@ void common_init (PrivateData *p);
 #define EDGESCROLL  0x01
 #define NOSCROLL    0x00
 
-#define ONOFFCTRL   0x08
+#define ONOFFCTRL   0x08	/* Only reachable with EXTREG clear */
 #define DISPON      0x04
 #define DISPOFF     0x00
 #define CURSORON    0x02
@@ -166,22 +166,36 @@ void common_init (PrivateData *p);
 #define CURSORBLINK 0x01
 #define CURSORNOBLINK 0x00
 
-#define CURSORSHIFT 0x10
+#define EXTMODESET  0x08	/* Only reachable with EXTREG set */
+#define FONT6WIDE   0x04
+#define INVCURSOR   0x02
+#define FOURLINE    0x01
+
+#define CURSORSHIFT 0x10	/* Only reachable with EXTREG clear */
 #define SCROLLDISP  0x08
 #define MOVECURSOR  0x00
 #define MOVERIGHT   0x04
 #define MOVELEFT    0x00
 
+#define HSCROLLEN   0x10	/* Only reachable with EXTREG set */
+
 #define FUNCSET     0x20
 #define IF_8BIT     0x10
 #define IF_4BIT     0x00
 #define TWOLINE     0x08
 #define ONELINE     0x00
-#define LARGECHAR   0x04		  /* 5x11 characters */
-#define SMALLCHAR   0x00		  /* 5x8 characters */
+#define LARGECHAR   0x04	/* 5x11 characters */
+#define SMALLCHAR   0x00	/* 5x8 characters */
+#define EXTREG      0x04	/* Select ext. registers (Yes, the same bits)*/
+#define SEGBLINK    0x02	/* Only reachable with EXTREG set */
+#define POWERDOWN   0x01	/* Only reachable with EXTREG set */
 
-#define SETCHAR     0x40
+#define SETCHAR     0x40	/* Only reachable with EXTREG clear */
 
-#define POSITION    0x80
+#define SETSEG      0x40	/* Only reachable with EXTREG set */
+
+#define POSITION    0x80	/* Only reachable with EXTREG clear */
+
+#define HSCROLLAMOUNT 0x80	/* Only reachable with EXTREG set */
 
 #endif
diff --git a/server/drivers/hd44780-picanlcd.c b/server/drivers/hd44780-picanlcd.c
index edcd9f3..19b405f 100644
--- a/server/drivers/hd44780-picanlcd.c
+++ b/server/drivers/hd44780-picanlcd.c
@@ -105,7 +105,7 @@ hd_init_picanlcd (Driver *drvthis)
 	p->hd44780_functions->backlight = picanlcd_HD44780_backlight;
 	p->hd44780_functions->scankeypad = picanlcd_HD44780_scankeypad;
 
-	common_init (p);
+	common_init (p, IF_8BIT);
 
 	return 0;
 }
diff --git a/server/drivers/hd44780-serialLpt.c b/server/drivers/hd44780-serialLpt.c
index d791aa7..5e988cd 100644
--- a/server/drivers/hd44780-serialLpt.c
+++ b/server/drivers/hd44780-serialLpt.c
@@ -106,7 +106,7 @@ hd_init_serialLpt (Driver *drvthis)
 	hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_4BIT | TWOLINE | SMALLCHAR);
 	hd44780_functions->uPause (p, 40);
 
-	common_init (p);
+	common_init (p, IF_8BIT);
 
 	return 0;
 }
diff --git a/server/drivers/hd44780-winamp.c b/server/drivers/hd44780-winamp.c
index 1235107..481f94d 100644
--- a/server/drivers/hd44780-winamp.c
+++ b/server/drivers/hd44780-winamp.c
@@ -109,10 +109,8 @@ hd_init_winamp (Driver *drvthis)
 	hd44780_functions->uPause (p, 4100);
 	hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_8BIT);
 	hd44780_functions->uPause (p, 100);
-	hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_8BIT | TWOLINE | SMALLCHAR);
-	hd44780_functions->uPause (p, 40);
 
-	common_init (p);
+	common_init (p, IF_8BIT);
 
 	if (p->have_keypad) {
 		// Remember which input lines are stuck
@@ -139,7 +137,7 @@ lcdwinamp_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned ch
 	portControl |= p->backlight_bit;
 
 	if (displayID == 0)
-		enableLines = EnMask[0] | EnMask[1] | ((p->extIF) ? EnMask[2] : 0);
+		enableLines = EnMask[0] | EnMask[1] | EnMask[2];
 	else
 		enableLines = EnMask[displayID - 1];
 
diff --git a/server/drivers/hd44780.c b/server/drivers/hd44780.c
index 59b08d6..2e06d3f 100644
--- a/server/drivers/hd44780.c
+++ b/server/drivers/hd44780.c
@@ -148,7 +148,7 @@ HD44780_init (Driver * drvthis, char *args)
 	//// READ THE CONFIG FILE
 
 	p->port			= drvthis->config_get_int( drvthis->name, "port", 0, LPTPORT );
-	p->extIF		= drvthis->config_get_bool( drvthis->name, "extended", 0, 0 );
+	p->ext_mode		= drvthis->config_get_bool( drvthis->name, "extendedmode", 0, 0 );
 	p->have_keypad		= drvthis->config_get_bool( drvthis->name, "keypad", 0, 0 );
 	p->have_backlight	= drvthis->config_get_bool( drvthis->name, "backlight", 0, 0 );
 	p->have_output		= drvthis->config_get_bool( drvthis->name, "outputport", 0, 0 );
@@ -321,8 +321,17 @@ HD44780_init (Driver * drvthis, char *args)
 // the connectiontype should do this.
 //
 void
-common_init (PrivateData *p)
+common_init (PrivateData *p, unsigned char if_bit)
 {
+	if (p->ext_mode) {
+		// Set up extended mode */
+		p->hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | if_bit | TWOLINE | SMALLCHAR | EXTREG );
+		p->hd44780_functions->uPause (p, 40);
+		p->hd44780_functions->senddata (p, 0, RS_INSTR, EXTMODESET | FOURLINE );
+		p->hd44780_functions->uPause (p, 40);
+	}
+	p->hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | if_bit | TWOLINE | SMALLCHAR );
+	p->hd44780_functions->uPause (p, 40);
 	p->hd44780_functions->senddata (p, 0, RS_INSTR, ONOFFCTRL | DISPON | CURSOROFF | CURSORNOBLINK);
 	p->hd44780_functions->uPause (p, 40);
 	p->hd44780_functions->senddata (p, 0, RS_INSTR, CLEAR);
@@ -386,18 +395,22 @@ HD44780_position (Driver *drvthis, int x, int y)
 	int relY = y - p->dispVOffset[dispID - 1];
 	int DDaddr;
 
-	// 16x1 is a special case
-	if (p->dispSizes[dispID - 1] == 1 && p->width == 16) {
-		if (x >= 8) {
-			x -= 8;
-			relY = 1;
+	if (p->ext_mode) {
+		// Linear addressing, each line starts 0x20 higher.
+		DDaddr = x + relY * 0x20;
+	} else {
+		// 16x1 is a special case
+		if (p->dispSizes[dispID - 1] == 1 && p->width == 16) {
+			if (x >= 8) {
+				x -= 8;
+				relY = 1;
+			}
 		}
+	
+		DDaddr = x + (relY % 2) * 0x40;
+		if ((relY % 4) >= 2)
+			DDaddr += p->width;
 	}
-
-	DDaddr = x + (relY % 2) * 0x40;
-	if ((relY % 4) >= 2)
-		DDaddr += p->width;
-
 	p->hd44780_functions->senddata (p, dispID, RS_INSTR, POSITION | DDaddr);
 	p->hd44780_functions->uPause (p, 40);  // Minimum exec time for all commands
 }