FSX freezes system completely.If I go on an extended flight or a few short ones FSX will freeze my system completely."Ctrl-Alt-Delete" will not get me out either, my only option is the reboot button.Sometimes it happens during the flight randomly.I paused the flight once and came back an hour later and the system was frozen.It has happened a bunch of times switching back from the map screen, blank screen and frozen.Last night I finished a flight, presses "Esc" to exit, the selected "End Flight" and poof, blank sceen and frozen again.The worst part is the event view does not register an error, the only thing mentioned is the unexpected reboot.Very tough to diagnose without any clues!!FSX Acceleration.Everything should be up to date.Intel Core 2 Quad Q9550 Quad-CoreASUS P5N-D NVIDIA 750iCorsair 8GB (4x2GB) DDR2 1066MHzSeagate 2TB (4x500GB) SATA HDD2 x NVIDIA GeForce 9800GTX+ (SLI)Pioneer 20X DVD-writer SATACreative Sound Blaster AudigyMatrox TripleHead2Go3 x Samsung 22"Track IR 4 ProSaitek X52 Pro & Rudder PedalsCH Products Yoke, Throttle Quadrant & PedalsAny ideas would be appreciated!