Studio 1735 No Power after Windows 7 Load

I recently loaded Windows 7 on my Dell Studio 1735 and I used it for about 30 minutes then it died.  No power.  I was able to boot it up one time after that, but since then nothing.  I have tried to turn it on with and without the battery (plugged in both times), but nothing.  I spoke with a friend who works at BB and he said he has heard of this happening, but had no clue how to fix it considering it doesn't boot up.

Any suggestions or feedback would be greatly appreciated.