Maybe you should try using the onboard video and see if it screws up too.
Do you know that the drivers installed are the proper drivers for windows? What kind of motherboard is it?
You can also try running half-life using
wineX which is not exactly an emulator (i think WINE stands for:
Wine
Is
Not an
Emulator) but WineX will allows you to play windows games in linux with DirectX (there is WINE which doesnt have directX, but is the same thing).
[ May 30, 2002: Message edited by: Master of Reality ]
[ May 30, 2002: Message edited by: Master of Reality ]