Hello Troy,
First I would like to ask if you are able to connect on VATSIM properly and talk to the ATC online?
2) What OS are you runing? (ex. XP, VISTA)
3) Have you tried reinstalling FSX along with your addons... A clean reinstall ussually help stop the fatal errors.
Let me know if you reinstall, and tell me if your first able to connect to VATSIM via FSInn.