I just recently purchased a new Dell XPS 8100 (i5 650, 6GB RAM, Nvidia Geforce GTS240) and over the past week or so have been getting BSOD errors quite regularly. There doesn't seem to be any single issue - most often it happens when playing a game, but sometimes it'll happen when browsing a forum and once when I was watching a video on youtube.
I tried reverting to earlier restore points and the last known good config but to no avail. I also updated the drivers for my Nvidia card, but no luck there either. I'm at a loss for what else could be causing this, so any help would be greatly appreciated.
Minidump is attached.