Over the last several of weeks I have been getting a ton of crashes while flying in AH. They usually would happen like once every hour or so and could happen 10 minutes into the game or after an hour. I could not figure out the source of the problem, but I think I finally did.
Last night, after finally getting fed up with it (and of bunch of other failed solutions), I uninstalled the Track IR 4.1.027 software I have been using. I reinstalled an older release (4.1.026). Today I ran for almost 2 hours in the MA and about the same amount of time in the SEA without a crash. So, it looks like some problem with my install of TrackIR 4.1.027. I am not 100% sure yet, but it looks promising.
I just wanted to pass this on to anyone else that is using TrackIR.