Graphics card for Windows 7

[kviolet]

Hello,
I have a Dell dimension 2400 with pentium 4 and it has an intergrated graphics 82845G which does not seem compatable with Windows 7! I can't get it out of lowest setting for the resolusion. What would be the best graphics card to upgrade?

 

[Helltech]

Have you installed all of the drivers for your motherboard?