So I was on an approach to ENGM ILS 19L when I hit go around. Suddenly the fps went from 20-25 to 8-9 and the whole sim was lagging. I changed a waypoint in the FMC and then FSX froze. Hope this gets fixed in an update....never had the sim freeze on me or drop in fps so suddenly.

I also had the same problem when I tried to break off the Localizer/DME at LOWI to land at RWY08. To leave the Localizer i had to change from APP Mode to HDG Mode. So i pushed the TO/GA button and at that second the FPS decreased from around 23 to 5-8 FPS and stayed at that level until I quit FSX. I had no crash and was able to land the bird. I don't have a high end system. Windows XP 32 Bit with 2 Gigs if RAM, Dualcore Pentium 3.2 GHz and NVidia 9800GT. But i got this bird run smooth at most conditions. On the last 10 flights i had no freezes or crashes. Matt Neville