Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
latest nvidia drivers gave me micro stutters...rolled back to 368.22...P3D 3.3.5 has produced the best performance in any iteration of flight simming ever...IMO...my bottle neck is my video card right now...
I had the latest driver set too, and rolled back. But I rolled back to 364.72, I'll try 368.22