I have a error showing now when I load the 747.'TrafficInfo.DLL missingTCAS only useable in FSUIPC mode'Any help please?

I get the impression from your other post you have reinstalled the NGs. If this is the case then the 747s would have to be reinstalled as well.http://www.precisionmanuals.com/html/support/747.htmAnd I find it is necessary to fully uninstall before reinstalling.