Acer aspire 5733z-4633 won't power on! I actually just purchased it locally from a repair person and it would not power up when I got it home. He refuses to do anything about it because it was powered up when I bought it. When I hit the power button the blue power light comes on for 5 seconds and goes back off. No sounds or screen images. It is not powering up the drives or screen. When I called the guy he said take the battery out, disconnect the power cord and hold the power button down for 30 seconds. When I did that it did power on and boot up one more time but has not worked since. Anyone have a clue?