I have a Dell Inspiron 1750 Laptop. I am unsure about specifications on the Motherboard.
The OS it came with was Windows Vista, however I have Ubuntu 10.04 as the operating system now.
The graphics look fine for GNOME, desktop applications and Open Office and Firefox. However, windows games in Wine have some glitches. I think upgrading the graphics drivers (if possible) would be the first logical step.