I have an nVidia Riva TNT2 M64 graphics card installed and I am running XP Pro SP2. After installation, XP recognised the graphics card correctly and installed a driver accordingly. I have a resolution of 1600 x 900 available which matches the aspect ratio of my plasma screen perfectly. Everything is great until I reboot the machine at which time something happens to graphics card driver and the 1600 x 900 resolution has disappeared. I have to roll back to a system restore point to get that resolution back and then, again, it is fine until a reboot. Any ideas on what is going on here? I have tried several different drivers to get the 1600 x 900 back but only the system restore to the inital driver works. All help is appreciated. Tel