It's more likely there is a problem with the refresh rate analysis BlitzMax does.
Tom, check your bios to make sure your video card IRQ is enabled and check your OpenGL driver config to make sure there is no override on the vertical blank. I'll do some testing this week to see if I can emulate the problem here.
Tom, check your bios to make sure your video card IRQ is enabled and check your OpenGL driver config to make sure there is no override on the vertical blank. I'll do some testing this week to see if I can emulate the problem here.