diff --git a/Makefile b/Makefile
index 2aed649..7dc764e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,4 @@
+MACHINE=mac99
 PPC=powerpc-linux-gnu
 QEMU=qemu-system-ppc
 DISK.APM: kernel.elf bootinfo.txt scripts/kpartx.sh
@@ -24,8 +25,8 @@ start.elf: entry/start.s
 clean:
 	rm *.APM *elf *txt 
 run:
-	$(QEMU) *.APM -g 1024x768x32
+	$(QEMU) *.APM -g 1280x768x32 -machine $(MACHINE)
 debug:
-	$(QEMU) *.APM -d in_asm -g 1024x768x32
+	$(QEMU) *.APM -d in_asm -g 1280x768x32 -machine $(MACHINE)
 all:
 	make clean && make && make run
diff --git a/entry/boot.c b/entry/boot.c
index 18ee183..24f2b6d 100644
--- a/entry/boot.c
+++ b/entry/boot.c
@@ -1,16 +1,18 @@
-#define beige         0xBE
-#define mac99         0x5A
-#define __VRAM__BEIGE 0x80000000
-#define __VRAM__MAC99 0x81000000
-#define __BIOS__BEIGE 0xFFC00000
-#define __BIOS__MAC99 0xFFF00000
+#define beige                   0xBE
+#define mac99                   0x5A
 
+#define __VRAM__BEIGE           0x80000000
+#define __BIOS__BEIGE           0xFFC00000
 
-unsigned char IO_TYPE;
+#define __VRAM__MAC99           0x81000000
+#define __BIOS__MAC99           0XFFF00000
+#define __USB_KEYBOARD__MAC99   0x80080038
+#define __USB_MOUSE__MAC99      0x8008003C
+
+unsigned char  IO_TYPE;
 unsigned char* p_vram;
 unsigned char* p_bios;
 
-
 void get_io_type(void)
 {
         if (*(unsigned char*)__VRAM__BEIGE == beige) IO_TYPE = beige;
@@ -21,9 +23,7 @@ void init(void)
 {
 	if (IO_TYPE == beige)
 	{
-                p_vram = __VRAM__BEIGE;
-		p_bios = __BIOS__BEIGE;
-
+		for(;;); // unsupported yet.
 	}
 	else if (IO_TYPE == mac99)
 	{
@@ -36,29 +36,23 @@ void main(void)
 {
 	get_io_type();
 	init();
-	clearscreen(0xAA,0xBB);
+	clearscreen(100,85,100, 0x100000);
 	for(;;);
 }
 
-void clearscreen(unsigned char a, unsigned char b)
+void clearscreen(unsigned char a, unsigned char b, unsigned char c, int n)
 {
 	init();
-	for (unsigned int i = 0; i<0x100000; i++)
+	for (unsigned int i = 0; i<n; i++)
 	{
-		*p_vram = a; 
+		//24-bit VGA
+		*p_vram = 0;
 		p_vram++;
-		*p_vram = b; 
+		*p_vram = a;
+		p_vram++;
+		*p_vram = b;
+		p_vram++;
+		*p_vram = c;
 		p_vram++;
 	}
 }
-
-void noisescreen(void)
-{
-	init();
-	for (unsigned int i = 0; i<0x200000; i++)
-	{
-		*p_vram = *(p_bios+0x2F0000+i);
-		p_vram++;
-
-	}
-}
diff --git a/entry/start.s b/entry/start.s
index da501ff..8e167f6 100644
--- a/entry/start.s
+++ b/entry/start.s
@@ -1,4 +1,3 @@
 .globl _start
 _start: 
-li 1, 0xac
 b main 
diff --git a/loader/load.fth b/loader/load.fth
index 89e949e..9c9e0e6 100644
--- a/loader/load.fth
+++ b/loader/load.fth
@@ -8,14 +8,15 @@
 : fba frame-buffer-adr ;
 : beige-vram 80000000 ; : mac99-vram 81000000 ;
 
+: beige-error ." G3 Beige machine isn't supported yet. Please run it with a post-1999 PowerPC Mac." ;
+
 variable run 
 -1 run !
 
-fba beige-vram = if  ." Beige" cr 100 0 do 0BE i beige-vram + c! loop then 
-fba mac99-vram = if  ." mac99" cr 100 0 do 05A i mac99-vram + c! loop then
+fba beige-vram = if beige-error cr 100 0 do 0BE i beige-vram + c! loop then 
+fba mac99-vram = if ." mac99"   cr 100 0 do 05A i mac99-vram + c! loop then
 fba beige-vram diff fba mac99-vram diff and if  ." Hardware not supported." cr 0 run ! then
 
-fba 100 dump
-
 run @ 0 = if 1 0 do 0 +loop then
+
 boot hd:,\boot\kernel.elf