Hi everyone, I have a 8800GTS 320mb currently installed and I now have an Ati 4850 to go in its place. But I have never done anything like this; I've never touched the components of my PC before. I think I can work out the hardware side of it but its the drivers part that's really got me stumped. I don't want to mess up anywhere, but I know I have to uninstall the Nvidia drivers first. I need to be wary because I have an NForce mobo so I can't afford to uninstall that. In add/remove programs there are "Nvidia Drivers" and "Nvidia Physx." I'm on Vista, and when I go on uninstall Nvidia Drivers a dialog box comes up asking me whether I want to: Remove all Nvidia Drivers INCLUDING display Remove all Nvidia Drivers EXCLUDING display Remove only the following: | | Nvidia Display Drivers | | Nvidia Ethernet Components. Alternatively, I could go into Device Manager and do it that way, but that has a checkbox whether I should: | | Delete the driver software for this device So I really have no idea which route I should take here or what options to select. I don't want to bork up my computer but at the same time I'd like my new card running nicely. If someone could help I'd be incredibly grateful, I've read several guides but they've not helped me totally.