Sorry to hear about your trouble. With out knowing more about what precipitated this issue my best guess is that you are having hardware troubles that are not related to DSS.

I would suggest testing the hardware. I good first step though is to be able to get into the BIOS. Once you can get into the bios if you have a cd rom try booting from a cd with something like http://www.ultimatebootcd.com that will give you tools to test your system further. If you use http://www.ultimatebootcd.com be careful some of the utilities for hard drive testing and portioning can cause you to loose data.

Good Luck