First post, by belboz
I used to do some VGA testing in a previous life and I just ran across DOSBox and thought I'd play around with it a little.
I ran a vga test program, vgatest10 http://www.simtel.net/pub/pd/3758.html and when I select 800x600 or 1024x768 resolutions I get an error message in the DOSBox monitor window that says "Exit to error: Unhandled CPU opcode".
I used DOSBox 0.60.