have a Dell 8400 3.0 HT P4 about 6 months old with XP home edition. I upgraded the video card to a PCI-E 128mb MSI 6600GT, I have a Saitek joystick and an 80GB Maxtor HD which simpily works as plug and play. Friday my computer crashed and I had to reinstall windows. Today I got everything up and running and know for the second time in the middle of playing Micrsoft Flight Simulator 2004 my computer shut of the blue screen with the following error, saih0464.sys     PAGE_FAULT_IN NONPAGED_AREA. Once restarting the computer it sends the error to microsoft and gives a page of possible reasons for this error and says that it might be from the drivers of new hardware and to make sure its updated. It is everything is, drivers and windows. The second time this happened when I pressed the power to restart the power supply fan almost exploded or at least sounded like a jet. Any or referral for help would be appreciated.