My laptop won't be turned on.

Could it be the door open warning? You Really need to have a technician listen to this as I need to hear it to decide the source which of course I can't from this computer..

Something is wrong in your start circuit. From battery to ignition switch, and ending at the starter solenoid. You would have to start checking for where power is lost between the switch and the starter. If you have power to the starter solenoid on the small wire at the starter (can check with a test light while someone holds the key in start), then the starter would need testing.

Leave it plugged in for about an hour for it to warm up than it will work like normal. I have this problem every once and a while

http://toolsnyou.com/ go to the link get the service and repair manual and solve the problem

Look for a bad fuse labeled instrument panel,Door lock ECT.

check the crank shaft position sensor located on the upper drivers side of the bellhousing.Check the plug and wires too.if its going bad it will create a no spark condition.

If light you are talking about is on the power supply itself, you need to replace the power supply. Look on E-Bay.

If the light you are talking about is the AC power light on the laptop, then there are two things that are most likely. First is the power receptacle in the laptop. I have personally seen many of these fail. The other thing is the battery. With the system Off, and power supply disconnected, remove the battery. Wait a couple of minutes and put back in and plug in charger. If it continues to happen then it is most likely the power receptacle in the laptop.

Best of luck, Jim

OK, the only things you can do is take it back or buy a new one, but here is a list of things that make PSPs do that:
1: Dropping them(Accident or not)
2: Putting water in them(So don't wash it)
3: Thumping them(Even if you lost that level)
4: Over-charging them(Charge it for 1-2 hours only)
5: Putting it in the microwave
6: Putting it in the oven
7: Leaving it in a steamy room
8: Removing the game while power is on
9: Bashing it with a hammer and finally...
...10: Opening it up and fiddling with the bits inside it.

Take out the battery and leave it off for 10mins and then put it back and see if it happens again

Your ignition lock probably has sticky pin inside of tumbler.
Try spraying some WD40 or PB Blast into the key cylinder.