hey, for the past month or so, my computer just shuts off usually after it comes out of sleep mode and the HDD starts revin up. It shuts off and then the green light infront of my computer just blinks until i restart the computer. After being frustrated from this i opened up my computer i hopes it was just a loose wire. i close it up and my comp turns on then just turns off right away almost seconds after. after trying again and again to start it, it would occasionally get moving, when i hit the logon screen for xp is shuts off again with the green flashing light. so thinking it was XP i format my system drive, i format it, then when it tries to install xp it again shuts off and goes to the green flashing lights. SOOO....i narrowed the problem down to the PSU...however i really am not sure if that IS the problem. i have a 250w (i think since it's model: LC-250ATX). right now i'm ready to pick up a new PSU tomorrow. If anyone can help me and tell me if i'm right or wrong it would be greatly appreciated before i go buy this thing. thx!