Sorry to hear about your problem. Lets see what we can do to get you back up an running...
If your computer will turn on then turn off try this:
OK. First go here
Then go HERE
The first download is for Utorrent
, a very small bittorrent program.
The 2nd is for the program that will fix this problem for you.
After installing Utorrent (or skip if you already have a torrent program) Go to the 2nd link and start the download of Spinrite.
Once the program is completely downloaded, virus check it.
Burn Spinrite onto a disk
Go the to the machine with the problem and load the disk.
Insert disk and Reboot system
Run the program at Level 5 not the default which is 2.
After letting the program run in its entirety remove the disk and reboot. you should be ready to rock..!
If your laptop is DEAD (you hit power button and nothing happens at all)
1. remove battery and plug into AC power - try to start
2. try starting with only battery installed - no ac plug
if none of this works it sounds like your Power supply has puckered out. IF this is the case I would visit the manufacturers website for information on replacing it.