I have been having trouble trying to figure out what has been causing it, and I got a message that told me there was some sort of problem with the PMDG sound .dll whatever I didn't think anything about it and should have read it more closely to see what .dll I also got a message from my computer yelling at me to reinstall my audio driver, which I said yes to. It is still crashing, Should I uninstall and reinstall my pmdg aircraft? Also should I try uninstalling the version of C++ that came with the aircraft?Patrick Boynton

I've seen something like this before- after a video driver install, but can't recall what I did to fix it. The video driver install also installed some sort of "digital audio" driver (nVidia), which then became the default sound driver, and the .dll you mention didn't like that. Sorry I can't be more specific.Bruce.