Wow... I installed the demo so I could see the product in action before buying it. But if I am going to get sarcastic responses from the help staff to my issues, I think I will take my money elsewhere. I did read all of the other threads on here regarding the multiple issues people are having with the product. At first I made sure the AV was excluding the entire FSX folder structure for scans. Installed demo, same issue, uninstalled. Disabled AV completely. Installed demo, same issue, uninstalled. Renamed fsx.cfg file temporarily, loaded FSX, allowed the addons as trusted sources, same issue.