is your power supply adequate for your system?
can you check the internal temps of your system?
sounds like an overheating or a faulty power supply to me. what does the windows event viewer have to say about the restarts?
can you provide your system information?
also, PLEASE type in a normal font. the font you used is rather difficult to read...maybe not difficult, but annoying on the eyes at least.
I highly doubt this is an anydvd issue and sounds more like an ongoing hardware issue.