This doesn't really sound like an OS issue. At a guess I'd say there's some corruption in your hard drive perhaps? Have you run a simple disk check? If your data is backed up I'd seriously do a clean format and stick with Vista. If it isn't backed up I'd run out like now to get a spindle of dvd's because if this problem gets worse you could lose everything.
hey Cerebus, i just backed my stuff up to an external, chkdsk best way, or some tools to use? Yeah this Seagate 500gb, is suspect to me, only a yr old though....
ST3500320AS Barracuda 7200.11 SATA 3Gb/s 500-GB Hard Drive | Seagate, i've got two crashed 7200.9 drives , why would it surprise me? how can people carry on buying this brand?