Weird power problem
Earlier on today i uninstalled a program that was not wanted was yahoo toolbar and something very odd happened to my pc. It started the shutdown process so i thought it was restarting because of the program removal but no it did not turn it self back on. So i pressed the power button and the lights and the fans spinned for a sec or two then went off. I unplugged the power cord for a few secs and put it back in again pressed the power button and it comes on as though nothing had happend. So i thought nothing of it ran a virus check to make sure i had no viruses. Then shut it down again just to see if it would power up again and it did the same thing lights and fans turn on for a few secs and turn off. I have checked all the connections inside and they are all secure. Only way i can power it on is to unplug power cord for a few secs then plug back in again and press power button.
Im basically lost as to what the problem maybe any help would be much appreciated. Thanks