1) I can't see the customize airpost positions under the Addons> GSX menu
Alright, so this is clearly something wrong with your GSX install. You can log the startup this way:
- open the Notepad and type the following on a new blank file:
logFile=couatl.log
(please note "logFile" is written beginning with a lower case L and a capital F )
- Save the file as couatl.ini in the %APPDATA%\Virtuali folder
- Run the sim, then exit shortly after you are on an airport, with the GSX menus missing.
- Check your %APPDATA%\Virtuali folder and if there's a Couatl.LOG file there, post its content
- DO NOT copy the file in a message, but use the "Attach" function of the forum to ZIP the log file and Attach it to a post.