Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
Thanks got it.C:\Users\username\AppData\Roaming\Microsoft\FSX

Thanks will give that a try,as I've not been able to get completly get rid of them. My frame rates fluxuate from 15 to120 even with v sinc forced on.Hi Theo,
Try: C:\Users\user\AppData\Roaming\Microsoft\FSX
It might be worth trying Bufferpools at 0. One thing that seems to effect my computer (GTX285) is the Nvidia drivers with newer ones causing stutters. The best ones I have found are 186.18. See how you get on!
Regards,
Ian.