Right. This is hard for me as i have the Pro version. 1st of all, have you added any AI to your sim? Go tono one of your CD's and unzip one of the *.CAB files (Winzip duz it i think) and find two files. On mine they are called dh_dash8_100.air (Thats in C:\Program Files\Microsoft Games\FS2002\aircraft\dh_dash8_100) and Traffic.bgl (in C:\Program Files\Microsoft Games\FS2002\SCENEDB\ATC\Scenery) and replace 'em. That should sort it. Dan