David,

Sounds like a busy weekend! ;)

Getting the mandelbrot assembly code working under windows was less painful that I was anticipating.  The already existing 32-bit code worked with a few tweaks related to changing variable sizes and the fix for popping information off the stack. There is still a problem (with both 32-bit and 64-bit versions) relating to how the code that displays orbits is handling keystrokes.  No crash, it just takes forever for the text screen to show up. Jonathan