TS community: My old Compaq desktop has been having power button trouble for some time. The computer would never turn off using the main power button. For two weeks I used the main power supply if I needed to turn the power supply on or off. Now, however, the computer will not boot automatically when plugging the power in. I have the case open and there is a small green light lit up on the mother board near where the power button plugs into the MB. I get no sign of life from either plugging in the Comp or pushing the power button. Any ideas? Thanks!