Hi I used to play a game called "track mania united forever"
It was extremely fun for a free game and it worked well with my onboard ati graphics card.
Well later i upgraded my vid card to the nvidea geforce 8800 gts due to SLOWER THAN SNAIL speeds lol i hate onboard graphics and had to fix that pretty quick lol
Well after i upgrading the game had mutch better resolution, frame rates, in 1080p.
The only prob was 30min into the game it would lock up and was showing weird colors.
This happened about 2 years ago bye the way but i have been having a hankering to play it again
What i found was it liked ati and had bugs under nvidea.