Here's another problem I encounter. You are running P3D ... sitting at an airport, everything OK. You then go to "world/scenery" and change (add, delete, move) a scenery file. When you hit "OK" the program reloads. For me, when it hits 69% (when the autogen starts to load), it hangs up (I waited 2 hours last night while having supper thinking it was trying to do something ... it is not, it hangs. The only way back is to restart. Anybody got an idea.
I have IS3 installed, but that is NOT the problem ... I had this problem before IS3 and I've taken it out and the problem remains ... it is somewhere in P3D. One interesting thing though, when you go to adjust a new bgl and it "reloads" the scenery ... it hangs again at 69% right when autogen starts loading.