Dear sirs, I have a 4 yr old HP Pavilion A6110E computer running Vista This weekend it started to shut down (power lost) while it was bein using......it just shuts down!! If you press the On/Off button, it wil boot-up using the recovery mode & then work fine for awhile till i decided to shut down again (no rhyme or reasons) I tried another powe sources, checked all connections and even confirmed that there was n dust build-up in the system. The odd thing is that it will start-u immediately once you hit the power button. It does do a recover start-up because it was turned-off incorrectly......almost like someon pulled the plug!! There is no set time frame or warning.....just seem to loose power. All the fans are working fine (rotating), the CPU fa does speed up at times then slows back down. I was thinking it might b the power supply, but from past experiences once the Power supply is ba the PC will not boot......plus the light stays on at the back of th power supply. Is it possible for the system to be overheating eve though all the fan are working? Are there any other possibilities that might be missing? Thanks in advance for any help you can offer!!! Mik