I left my pc on all day, with Steam, 2 folding clients and msn (aka Windows Live Messenger) running in the background. I came home 6 hours later, i moved my mouse and the Steam tray icon disappeared, and so did the process when i opened task manager. I didn't click it or so, it just..flop, gone!
I just wanted to open msn, hover over the icon,... flop, gone!. So is the process. Folding clients have been running all day fine.
What's wrong? I'm reformatting to 7 any day now, so not a big deal.