by Boikat » Sat Oct 10, 2009 10:07 am
It's hard to tell. It's always possible that one of the add-on's is the guilty party. Try deleting them one at a time (and anything that came with them, like gauges, effects..), until FSX boots up, or delete them all and add them back in, one at a time, until FSX goes "Pthththththth!"

"I reject your reality, and substitute my own" Adam Savage, Mythbusters