Errr, uhm, well....
I don't have FS2 installed right now, (GREAT game, BTW.
); but the original NOLF, Crimson Skies, UT, and Oni all play just fine for me. Very smooth, very crisp, no sign of glitchiness or artifacts.
I just re-installed 3dm2k, (I really SHOULD run new drivers thru it too, thanks for pointing out my neglect.
), and it scored me 9959 which is about a thousand points higher than my previous best. (Which was a looong time ago, so please bear that in mind.) The cool thing is the test LOOKED prettier than I ever remember it being.
Hope that helps, give 'em a try!