Are you sure it is not off. If trying to game- I know bioshock2 runs me crazy I turn it off in game it turns it back on. I turn it off in the card settings and off in game in game it is back on but showing off in the card settings. Is it causing you probs- or you just notice it and is bugging ya? If it is not hurting anything maybe just ignore it.
In xp Fraps use to lock my games at what I set its record fps at- Say 30fps, tho I have it set not to do it. But they seem to have fixed that.
Windows 7 can be glitchy versus my xp pro sp2- it games well tho. I do have probs with codecs or reading discs or installing game patches- which I read vista was worst about a lot of stuff- I skipped it. Pretty much forced on Windows 7, I can live with it. works better I think with sp1.
Hope you get it right- See ya..