[captainhairy]

Ever since I got my PC last year I've been not so much plagued with problems as slightly inconvenienced by them. In many different applications, I'll occasionally get small problems that I've not seen on my other PC with the same apps, and I'm beginning to wonder if there's some common root cause of it all.

Things like, occasionally the mouse cursor will jump halfway down the screen. It may be the wireless mouse doing it, but there's other stuff too. Things like Media Player Classic and various games going from full screen to minimised with no input from me. Seeing as I built the PC with media and games in mind (it's hooked up to a TV), this can get a little annoying. There's no key combination common to both MPC and the games that would do this apart from alt-tab, but when this happens, my fingers are nowhere near those keys, and in the case of MPC, the keyboard is often across the room.

The most recent one I've noticed is another media player issue, where for no good reason XBMC will skip forwards in whatever it's playing by one time increment at random. Sometimes it doesn't do it for hours, sometimes it'll happen 6-7 times per episode.

I've gone over the system with anti-virus (3 different scanners, all negative) and anti-malware (2 different scanners, both negative).

The system runs Vista Business SP1 (I got it for free from MSDNAA, so I can't really complain about it being a bad version for media), and the only slightly esoteric piece of hardware inside it is a Hauppage Nova-TD TV card.

[joeten]

hi try using the method describe in these to troubleshoot
http://support.microsoft.com/kb/331796
http://support.microsoft.com/kb/929135