So when I read: -The A380, SSJ, T34, etc. run fine on his computer -The CRJ "chokes the second I turn on the avionics" -The hardware tester said his system was ok I have to wonder what I'm missing. I own none of the mentioned aircraft so I don't want to jump to any conclusions. Michael, what happens when you turn the avionics on? Does the system freeze immediately or do the avionics come up, then followed by a frame-rate drop?