Out of curiosity I removed my gf 6800gt graphics card earlier and replaced it with an old riva tnt2 (eeeew).

When I get to desktop and look at configure desktop, instead of just the three options for screen resolution I had with the 6800, I see a huge list with just about every resolution under the sun. Just missing my fav of 1280 x 1024 which is no big deal now I've discovered kxconfig.

Maybe linux just hates my 6800 card!