Hello Everyone, I dont use ATC in flying routes however today I opened FSX and selected PMDG737ngx house colours and after initialising an ATC small window with radio options appeared. I clicked it off and ended the flight. I restarted my PC and went through the same procedure as before using a different version of the 737 and the same thing happened. I went into the settings menus and the ATC section was inactive. Is there a section in the FSX.cfg which I can delete to stop this occurring. Many thanks for any replies. Richard Welsh.