My computer: hp compaq nx9005, AMD Athlon, Windows XP Home SP2. As soon as I turn on my computer the CPU runs at 100% and the cooling fan turns on max. The process System (not System Idle Process) is at 90%+ when no applications are running. I have run Microsoft anti-spyware, ad-aware, spybot and have Symantec antivirus. Any ideas? Chris.