I wondered if anybody else has experienced this problem? In the last two weeks I have been having the pc suddenly shut down, as if a power outtage, no warning just instant shutdown. This only happens when on SL, and whilst at first was random, now I cant stay on SL for more than a few minutes before it happens. Ive had a friend check my pc and the fans were fine and he gave it a clean, but still the problem is there, I just cannot play SL now. I can play music videos, tv programmes etc, no problems. I have the psu being replaced this weekend, and have fingers crossed this is the source of the problem, if it isnt, Ive no idea . Id love to hear of any solutions from anyone who had this happen too.