I have a pretty high end machine, only 9 mos old, with an i5-2500k clocked @4.2, 8Gb of fast memory and a GTX 580 gpu running Windows 7. I also use the latest tweaks from Kosta on the AVSIM Hardware Forum, including *highmemfix*.

I get *fatal error* crashes all the time, but always when replaying FSRecorder frc files and changing views frequently using the drop down menu in the CS 727. Don't know if it has to do with CS or not--- probably not. I also suspect that there are possible problems with FSX in Windows 7. Don't know. I don't remember these crashes when I had a lessor pc on XP. I am also wonder if using *full screen*, mode as opposed to *Windowed* mode, has anything to do with it.?? Too many variables and possibilities to figure it out.