diff --git a/io.c b/io.c
index d0af100..98b19c6 100755
--- a/io.c
+++ b/io.c
@@ -31,7 +31,7 @@ void io_init(void)
   handshake.fInX=0;
 
   SerHShake(driverIn,&handshake);
-  SerReset(driverOut,baud1200+stop10+noParity+data8);
+  SerReset(driverOut,baud57600+stop10+noParity+data8);
   serial_buffer=NewPtr(SERIAL_BUFFER_SIZE);
 
   if (serial_buffer!=noErr)
diff --git a/screen.c b/screen.c
index 34528c3..69fd2fe 100644
--- a/screen.c
+++ b/screen.c
@@ -72,12 +72,14 @@ void screen_init(void)
       /* Mac Plus sized screen */
       windowRect.top=20;
       windowRect.bottom=windowRect.top+320;
+      CharHigh=10;
     }
   else if (screenRect.bottom < 532)
     {
       /* 640x480 screen */
       windowRect.top=20;
       windowRect.bottom=windowRect.top+448;
+      CharHigh=14;
     }
   else
     {
@@ -531,6 +533,10 @@ void screen_paint(padPt* Coord)
   unsigned char stackentry = 1;
   unsigned short spanAbove, spanBelow;
   RGBColor oldColor;
+  
+  if (is_mono==1)
+    return;
+
   GetCPixel(x,y,&oldColor);
 
   if ((oldColor.red == current_foreground.red) &&