My computer runs fine in safe mode but turns off randomly when run in normal mode no blue screens it just turns off.. have tried system restore and sometimes this cures the problem for a few days but the computer starts turning itself off again.
Vista Ultimate (32bit) SP1
2.4 Ghz Intel Core 2 Quad
Motherboard: ASUSTeK P5N-E SLI1.XX
BIOS: Phoenix Rev 0703 08/09/2007