Mandelbrot II GS Released (need test)

[limtc <thyechean@gmail.com>]

I just released a much faster and better version of fractal graphics
program (Mandelbrot II GS), the successor of Mandelbrot GS, to public
at:

http://virtualgs.larwe.com/Virtual_GS_Programming/Mandelbrot_GS.html

However, I can't get this to work at any emulators. I tested it to
work when I still owned the Apple IIGS. Can someone help me to verify
on a real GS?

I have trace down the issue to resolution switching. Whenever I switch
from 320 mode to 640 mode (shut down and restart QuickDraw), the
emulated GS will crash. I have already updated a version which is 640
mode only and works beautifully, but that effectively removed 50% of
its function. (Anybody wanted to try the 640 only version let me know)

Or can anybody tell me the correct way to switch graphics from 320
mode to 640 mode and vice versa in Complete Pascal? My codes (written
in 1993!) says:

QDShutDown
Graphics(mode)

This is the place where it crash.

Thanks!