well i realized i needed a new one when i went down whatever road leads to the gold mine and magic shop and instead of bushes, there were black and white checkered boxes...
Oh, I think, those are just missing textures - nothing to do with your graphic card

Nvidia seems to be the favorite for windows users but i wouldnt know from personal experience.
Well ...What I understand about Ati vs. Nvidia on win32 is that the former Ati drivers were the pits, but the new ones (Catalyst) are really good, and Ati being the (ex)underdog overtook Nvidia (then de facto the one-and-only true gamers' card) already a few years ago from now. I lost track of the whole graphic card war she-bang a few years ago though - and at that time they were tied only each series competed with the opponents similar series - half of the times Ati won, half of the times Nvidia.
No idea how's it now though ...
I guess all you could take from my posts is that don't just fall for the package and gamer magazine reviews, but
1) evaluate what you need it for and look for something around that area (you can get a more then decent Nvidia fo less then 200 EUR easy!) - the newest cards usually offer effects that only one or two games support right now!
2) it's not all in the hardware - even with the greatest and newest card will be barelly good for showing icons on your desktop if the drivers are bad (try to find out which drivers are good right now ...things develop so quickly whatever I say was the case two years ago, is useless now)
thanks hook
's nuffin', glad to help :]