A word of caution
I played this demo for a few minutes (IBM T60 notebook with ati x1400). After I finished, it didn't automaticaly get me back to my default resolution but I was left with the one I set in the game menu (1024x) and what's worse, it fucked up my tracpoint (I could click, but not move) so I couldn't navigate etc. It took me a few minutes to get my system back on track. Grrreat.
Right I just tried Ankh 1 and 2 and I also get corruption. I managed to get around it but downgrading the nvidia driver to 169.12 I'll have a look and see if it is a known bug tomorrow and report it if not.