I had to reinstall my NGX this week and am now encountering the "fatal flaw" error message both on exiting the program, and if I try to re-load a flight I've started.This doesn't happen with the NGX when I've installed the base plane, or the 1b patch. But it happens every time with the 1c patch.I've uninstalled and reinstalled several times, always making sure to install as administrator.Any thoughts?Colin Ware

http://forum.simflight.com/topic/66139-updated-modules/ Install both of the FSUIPC updates here in sequence and see if that solves it.