[expert] OpenGL on full-screen

[Turgut Kalfaoglu]

Greetings. In order to get 3D acceleration of ATI Mobility to work, I 
installed the older XFREE. Works great now - I have "gears" speed
in excess of 300FPS. However, the games that come with 8.0
that require full-screen crash the machine - with vertical blue
lines running on an otherwise dark screen. No CTRL-ALT-BACKSPACE
nor C-A-D can save the machine; the only thing that works is the
Big Reg Switch.. Any ideas what I should check?

Thanks, -turgut