Kempus,
glad you've resolved the problem - albeit with the "sledgehammer to crack a nut" route - respect!
I've been hanging back for about 8 or 9 months now from doing just that here because of niggly problems on this PC. I've got five user accounts on it and I'm bottling out from the re-install route in case I lose all the user data. That's even after I've done all the sensible stuff like backing it all up. What a wimp eh?
Hope that the future's problem free now.
Regards
ST