Strange graphics problem

[Bozz]

This always happen when I Alt+Tab out of AH, then Alt+Tab back in:
When I come back in, the screen is totally white, and will stay that way.  But if I hit the view buttons on the Numkey and sometimes f1, f2, f3, etc... while the screen is all white, occasionally the game comes back up like nothing happened.
But sometimes no amount of random button pressing will get it out of the white screen until I alt+f4 it =[

Heres Some Info:
AMD 750mhz
320mb of ram
Dial Up connect
SoundMax Digital Audio
Nvidia Vanta Lt (Compaq) video card, 800x600 resolution

Anything I can try to fix this? Thanks

[Axellerator]

same thing happens to me. whenever i minimize the game and re-enter the colours go crazy, they start turning green and im able to see through mountains and other wierd stuff like that. wonder why it is happening