I installed fedora 10 yesterday, with no problems, aside from having to switch from onboard graphics to a GeForce Fx 5200.
After configuring the display at 1280x1024, and it working fine i was pretty happy. But when i turned the machine off and back on, i cannot set my resolution to anything but 800x600.

I'm new to linux so this could easily be an obvious problem, but any help would be much appriciated! Thanks.
Frank