diff --git a/src/SSD1306.cpp b/src/SSD1306.cpp
index 8f20f1a..9e6728a 100644
--- a/src/SSD1306.cpp
+++ b/src/SSD1306.cpp
@@ -27,12 +27,14 @@ extern "C"
 
 unsigned char frame[SSD1306_128x64_BYTES];
 
-SSD1306::SSD1306(int BSCMaster, u8 address, int flip, int type)
+SSD1306::SSD1306(int BSCMaster, u8 address, unsigned width, unsigned height, int flip, LCD_MODEL type)
 	: BSCMaster(BSCMaster)
 	, address(address)
 	, type(type)
 	, flip(flip)
 	, contrast(127)
+	, width(width)
+	, height(height)
 {
 	RPI_I2CInit(BSCMaster, 1);
 
@@ -45,7 +47,7 @@ void SSD1306::InitHardware()
 	SendCommand(SSD1306_CMD_DISPLAY_OFF);	// 0xAE
 
 	SendCommand(SSD1306_CMD_MULTIPLEX_RATIO);  // 0xA8
-	SendCommand(0x3F);	// SSD1306_LCDHEIGHT - 1
+	SendCommand(height-1);	// SSD1306_LCDHEIGHT - 1
 
 	SendCommand(SSD1306_CMD_SET_DISPLAY_OFFSET);  // 0xD3 Vertical scroll position
 	SendCommand(0x00);  // no Offset
@@ -61,7 +63,10 @@ void SSD1306::InitHardware()
 	}
 
 	SendCommand(SSD1306_CMD_SET_COM_PINS);	// 0xDA Layout and direction
-	SendCommand(0x12);
+	if (type == LCD_1306_128x32)
+		SendCommand(0x02);
+	else
+		SendCommand(0x12);
 
 	SetContrast(GetContrast());
 
@@ -86,7 +91,7 @@ void SSD1306::InitHardware()
 
 	Home();
 
-	if (type != 1106)
+	if (type != LCD_1106_128x64)
 		SendCommand(SSD1306_CMD_DEACTIVATE_SCROLL);	// 0x2E
 }
 
@@ -115,23 +120,23 @@ void SSD1306::Home()
 	MoveCursorByte(0, 0);
 }
 
-void SSD1306::MoveCursorByte(u8 row, u8 col)
+void SSD1306::MoveCursorByte(u8 page, u8 col)
 {
-	if (col > 127) { col = 127; }
-	if (row > 7) { row = 7; }
+	if (col > width-1) { col = width-1; }
+	if (page > height/8-1) { page = height/8-1; }
 
-	if (type == 1106)
+	if (type == LCD_1106_128x64)
 		col += 2;	// sh1106 uses columns 2..129
 
-	SendCommand(SSD1306_CMD_SET_PAGE | row);		// 0xB0 page address
+	SendCommand(SSD1306_CMD_SET_PAGE | page);		// 0xB0 page address
 	SendCommand(SSD1306_CMD_SET_COLUMN_LOW | (col & 0xf));	// 0x00 column address lower bits
 	SendCommand(SSD1306_CMD_SET_COLUMN_HIGH | (col >> 4));	// 0x10 column address upper bits
 }
 
 void SSD1306::RefreshScreen()
 {
-	int i;
-	for (i = 0; i < 8; i++)
+	unsigned i;
+	for (i = 0; i < height/8; i++)
 	{
 		RefreshPage(i);
 	}
@@ -151,9 +156,19 @@ void SSD1306::RefreshRows(u32 start, u32 amountOfRows)
 
 void SSD1306::RefreshPage(u32 page)
 {
+	if (page >= height/8)
+		return;
+
+	// x32 displays use lower half (pages 2 and 3)
+	if (type == LCD_1306_128x32)
+	{
+		page = page+4;	// 0,1,2,3 -> 4,5,6,7
+		page = page%4;	// and wrap it so 4,5 -> 0,1
+	}
+
 	int i;
-	int start = page*128;
-	int end = page*128 + 128;
+	int start = page*width;
+	int end = start + width;
 
 	MoveCursorByte(page, 0);
 	for (i = start; i < end; i++)
@@ -183,7 +198,7 @@ void SSD1306::SetContrast(u8 value)
 	contrast = value;
 	SendCommand(SSD1306_CMD_SET_CONTRAST_CONTROL);
 	SendCommand(value);
-	if (type == 1306)
+	if (type != LCD_1106_128x64)	// dont fiddle vcomdeselect on 1106 displays
 		SetVCOMDeselect( value >> 8);
 }
 
diff --git a/src/SSD1306.h b/src/SSD1306.h
index f1ea8d9..6ab245f 100644
--- a/src/SSD1306.h
+++ b/src/SSD1306.h
@@ -76,7 +76,7 @@ class SSD1306
 public:
 	// 128x32 0x3C
 	// 128x64 0x3D or 0x3C (if SA0 is grounded)
-	SSD1306(int BSCMaster = 1, u8 address = 0x3C, int flip = 0, int type=1306);
+	SSD1306(int BSCMaster = 1, u8 address = 0x3C, unsigned width = 128, unsigned height = 64, int flip = 0, LCD_MODEL type=LCD_UNKNOWN);
 
 	void PlotCharacter(int x, int y, char ascii, bool inverse);
 	void PlotText(int x, int y, char* str, bool inverse);
@@ -110,6 +110,8 @@ protected:
 	int type;
 	int flip;
 	int contrast;
+	unsigned width;
+	unsigned height;
 };
 #endif
 
diff --git a/src/ScreenLCD.cpp b/src/ScreenLCD.cpp
index bde0a30..591422c 100644
--- a/src/ScreenLCD.cpp
+++ b/src/ScreenLCD.cpp
@@ -23,14 +23,14 @@
 #include "debug.h"
 #include "ssd_logo.h"
 
-void ScreenLCD::Open(u32 widthDesired, u32 heightDesired, u32 colourDepth, int BSCMaster, int LCDAddress, int LCDFlip, int LCDType)
+void ScreenLCD::Open(u32 widthDesired, u32 heightDesired, u32 colourDepth, int BSCMaster, int LCDAddress, int LCDFlip, LCD_MODEL LCDType)
 {
 	bpp = 1;
 
 	if (widthDesired < 128)
 		widthDesired = 128;
-	if (heightDesired < 64)
-		heightDesired = 64;
+	if (heightDesired < 32)
+		heightDesired = 32;
 	if (widthDesired > 128)
 		widthDesired = 128;
 	if (heightDesired > 64)
@@ -39,7 +39,7 @@ void ScreenLCD::Open(u32 widthDesired, u32 heightDesired, u32 colourDepth, int B
 	width = widthDesired;
 	height = heightDesired;
 
-	ssd1306 = new SSD1306(BSCMaster, LCDAddress, LCDFlip, LCDType);
+	ssd1306 = new SSD1306(BSCMaster, LCDAddress, width, height, LCDFlip, LCDType);
 	ssd1306->ClearScreen();
 	ssd1306->RefreshScreen();
 	ssd1306->DisplayOn();
diff --git a/src/ScreenLCD.h b/src/ScreenLCD.h
index dc68275..b81d114 100644
--- a/src/ScreenLCD.h
+++ b/src/ScreenLCD.h
@@ -21,6 +21,7 @@
 
 #include "ScreenBase.h"
 #include "SSD1306.h"
+#include "options.h"
 
 class ScreenLCD : public ScreenBase
 {
@@ -32,7 +33,7 @@ public:
 	{
 	}
 
-	void Open(u32 width, u32 height, u32 colourDepth, int BSCMaster, int LCDAddress, int LCDFlip, int LCDType);
+	void Open(u32 width, u32 height, u32 colourDepth, int BSCMaster, int LCDAddress, int LCDFlip, LCD_MODEL LCDType);
 
 	void ClearArea(u32 x1, u32 y1, u32 x2, u32 y2, RGBA colour);
 	void Clear(RGBA colour);
diff --git a/src/main.cpp b/src/main.cpp
index ad9bcd8..5e34d83 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -365,26 +365,30 @@ void InitialiseLCD()
 	int i2cLcdOnContrast = options.I2CLcdOnContrast();
 	int i2cLcdDimContrast = options.I2CLcdDimContrast();
 	int i2cLcdDimTime = options.I2CLcdDimTime();
-	int i2cLcdModel = options.I2CLcdModel();
+	LCD_MODEL i2cLcdModel = options.I2CLcdModel();
 
 	if (i2cLcdModel)
 	{
+		int width = 128;
+		int height = 64;
+		if (i2cLcdModel == LCD_1306_128x32)
+			height = 32;
 		screenLCD = new ScreenLCD();
-		screenLCD->Open(128, 64, 1, i2cBusMaster, i2cLcdAddress, i2cLcdFlip, i2cLcdModel);
+		screenLCD->Open(width, height, 1, i2cBusMaster, i2cLcdAddress, i2cLcdFlip, i2cLcdModel);
 		screenLCD->SetContrast(i2cLcdOnContrast);
 		screenLCD->ClearInit(0); // sh1106 needs this
 
 		bool logo_done = false;
-		if (strcasecmp(options.GetLcdLogoName(), "1541ii") == 0)
+		if ( (height == 64) && (strcasecmp(options.GetLcdLogoName(), "1541ii") == 0) )
 		{
-			screenLCD->PlotRawImage(logo_ssd_1541ii, 0, 0, 128, 64);
+			screenLCD->PlotRawImage(logo_ssd_1541ii, 0, 0, width, height);
 			snprintf(tempBuffer, tempBufferSize, "Pi1541 V%d.%02d", versionMajor, versionMinor);
 			screenLCD->PrintText(0, 16, 0, tempBuffer, 0xffffffff);
 			logo_done = true;
 		}
-		else if (strcasecmp(options.GetLcdLogoName(), "1541classic") == 0)
+		else if (( height == 64) && (strcasecmp(options.GetLcdLogoName(), "1541classic") == 0) )
 		{
-			screenLCD->PlotRawImage(logo_ssd_1541classic, 0, 0, 128, 64);
+			screenLCD->PlotRawImage(logo_ssd_1541classic, 0, 0, width, height);
 			logo_done = true;
 		}
 		else if (f_stat(options.GetLcdLogoName(), &filLcdIcon) == FR_OK && filLcdIcon.fsize <= LCD_LOGO_MAX_SIZE)
@@ -398,7 +402,7 @@ void InitialiseLCD()
 				u32 bytesRead;
 				f_read(&fp, LcdLogoFile, LCD_LOGO_MAX_SIZE, &bytesRead);
 				f_close(&fp);
-				screenLCD->PlotRawImage(LcdLogoFile, 0, 0, 128, 64);
+				screenLCD->PlotRawImage(LcdLogoFile, 0, 0, width, height);
 				logo_done = true;
 			}
 		}
@@ -406,8 +410,8 @@ void InitialiseLCD()
 		if (!logo_done)
 		{
 			snprintf(tempBuffer, tempBufferSize, "Pi1541 V%d.%02d", versionMajor, versionMinor);
-			int x = (128 - 8*strlen(tempBuffer) ) /2;
-			int y = (64-16)/2;
+			int x = (width - 8*strlen(tempBuffer) ) /2;
+			int y = (height-16)/2;
 			screenLCD->PrintText(0, x, y, tempBuffer, 0x0);
 		}
 		screenLCD->RefreshScreen();
diff --git a/src/options.cpp b/src/options.cpp
index 5fa487e..62550b2 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -145,7 +145,7 @@ Options::Options(void)
 	, i2cScan(0)
 	, i2cLcdFlip(0)
 	, i2cLcdOnContrast(127)
-	, i2cLcdModel(0)
+	, i2cLcdModel(LCD_UNKNOWN)
 	, scrollHighlightRate(0.125f)
 	, keyboardBrowseLCDScreen(0)
 {
@@ -241,9 +241,11 @@ void Options::Process(char* buffer)
 		{
 			strncpy(LCDName, pValue, 255);
 			if (strcasecmp(pValue, "ssd1306_128x64") == 0)
-				i2cLcdModel = 1306;
+				i2cLcdModel = LCD_1306_128x64;
+			else if (strcasecmp(pValue, "ssd1306_128x32") == 0)
+				i2cLcdModel = LCD_1306_128x32;
 			else if (strcasecmp(pValue, "sh1106_128x64") == 0)
-				i2cLcdModel = 1106;
+				i2cLcdModel = LCD_1106_128x64;
 
 		}
 		else if ((strcasecmp(pOption, "ROM") == 0) || (strcasecmp(pOption, "ROM1") == 0))
diff --git a/src/options.h b/src/options.h
index 22a8931..24dd1e9 100644
--- a/src/options.h
+++ b/src/options.h
@@ -19,6 +19,8 @@
 #ifndef OPTIONS_H
 #define OPTIONS_H
 
+#include "types.h"
+
 class TextParser
 {
 public:
@@ -77,7 +79,7 @@ public:
 	inline unsigned int I2CLcdOnContrast() const { return i2cLcdOnContrast; }
 	inline unsigned int I2CLcdDimContrast() const { return i2cLcdDimContrast; }
 	inline unsigned int I2CLcdDimTime() const { return i2cLcdDimTime; }
-	inline unsigned int I2CLcdModel() const { return i2cLcdModel; }
+	inline LCD_MODEL I2CLcdModel() const { return i2cLcdModel; }
 
 	inline const char* GetLcdLogoName() const { return LcdLogoName; }
 
@@ -123,7 +125,8 @@ private:
 	unsigned int i2cLcdOnContrast;
 	unsigned int i2cLcdDimContrast;
 	unsigned int i2cLcdDimTime;
-	unsigned int i2cLcdModel;
+//	unsigned int i2cLcdModel;
+	LCD_MODEL i2cLcdModel = LCD_UNKNOWN;
 
 	float scrollHighlightRate;
 
diff --git a/src/stb_image.h b/src/stb_image.h
index a056138..dc83749 100644
--- a/src/stb_image.h
+++ b/src/stb_image.h
@@ -892,12 +892,14 @@ static int stbi__mad3sizes_valid(int a, int b, int c, int add)
       stbi__addsizes_valid(a*b*c, add);
 }
 
+#ifndef STBI_NO_LINEAR
 // returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow
 static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add)
 {
    return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) &&
       stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add);
 }
+#endif
 
 // mallocs with size overflow checking
 static void *stbi__malloc_mad2(int a, int b, int add)
@@ -912,11 +914,13 @@ static void *stbi__malloc_mad3(int a, int b, int c, int add)
    return stbi__malloc(a*b*c + add);
 }
 
+#ifndef STBI_NO_LINEAR
 static void *stbi__malloc_mad4(int a, int b, int c, int d, int add)
 {
    if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL;
    return stbi__malloc(a*b*c*d + add);
 }
+#endif
 
 // stbi__err - error
 // stbi__errpf - error returning pointer to float
diff --git a/src/types.h b/src/types.h
index 253092b..22aa7dc 100644
--- a/src/types.h
+++ b/src/types.h
@@ -9,5 +9,11 @@ typedef unsigned long long	u64;
 
 typedef signed long long	s64;
 
+typedef enum {
+        LCD_UNKNOWN,
+        LCD_1306_128x64,
+        LCD_1306_128x32,
+        LCD_1106_128x64,
+} LCD_MODEL;
 
 #endif