Hello, i have a dell latitude d600, i upgraded the driver awhile back, but it just doesn't run very well, i did not uninstall the previous version before i upgraded (i'm not a computer genius and if you have answers towards this dumb it down the best you can XD) But my question is, i play in 3d alot and one game just laggs alot, and i was wondering if by me not uninstalling the previous driver, could it have cause this lag in most of my games (it wasn't lagging much before) or is there a better driver i can install on it to improve the function?