I have been having matters for 2 weeks.I have an HP laptop 4-1/2 years old on Vista SP2. The monitor diedthus I added an HP external monitor. The PC is acting unpredictably.I did a scan for viruses and initially a virus was detected andquarantined. Upon shutdowns or re-begins, the PC will look torestart/shutdown, but really recycle again and come up to the 'bluescreen.' I go to 'safe mode' and then reboot again and the troubleseems to go away for awhile. Last night when attempting to'hibernate' the PC, it rebooted, went to blue display, I went to safemode and then shut it all the way down. I turned on the PC and itonce again went to blue display. Any help would be appreciated.