Hi Dave
I purchased P2ATC and has been working fine. Certainly the software doesn't allow me to file a file plan although It can be validated. You will see on the screenshot that P2ATC is connected but the connection button remains grey and the icon of the plane is no where to be seen. I have updated AIRAc using Navigraph FMS Data Manager, downloaded your latest version of P2ATC and have updated XUIPC (the latter cannot be a connection issue because I can connect other third party software and plugins using XUIPC). Any help would be appreciated.