I've been avidly following up the various comments in this forum regarding the FSX. I've been messing around with the game for over a week now, doing various suggested tweaks to make it perform half way decent but so far no joy. Perhaps it's my rig (2.2GHz, 1.5G RAM, Nvidia GeForce 6800XT, etc) but again the FSX is going the way the CFS3 did. CFS3 never did get to its full potential. I think I'll be keeping my FS9 for a very long time. To make it work as many suggested I'm not ready to spend a few hundred Cs for a new rig. It'll be a long while if ever for the FSX to come close to FS9.
Bubblehead