computer startup problems

[boogaaaaa]

Just recently (as in this morning) my computers startup button has seemed to have gained a delay. Whenever I press the button to turn on my computer it doesn't power up my computer, instead it has a delay of anywhere between a couple of seconds to even minutes before it actually starts to power up my pc. What seems to be the problem here? and how can i fix it?

Any help will be greatly appreciated

[patio]

Borrow a known working power supply of the same or greater wattage and swap it in there overnight and test things out...
If it does the same thing it may be the power switch itself or you might have blown/failing capacitors on the MBoard...