Virtuali I have run into a 24hour nightmare, I have all of your airports installed KLAS KLAX PHNL KORD KFLL KDFW LSZH KJFK and KSFO. Wednesday I installed GSX and didn't like much so I uninstalled and problems began. first no buildings, I knew how to fix that so I did, then I modified an old AFCAD so I had to uninstall LAX then reinstall. After doing that no buildings again, and I tried correcting with addon manager no sucess. Next I uninstalled all airports and deleted folders and re-installed and all worked good, 1 reboot later no bulidings again so I tried addon manager then it said the message in the FSX Initializing GSX. After that no gates now! So please give me an Idea I know FSX and your software well but this one took the punch.