Not sure if anybody here uses AFX I did a search but didn't find anything...Just in case: does anybody have any ideas why the AFX preview function might have stopped working? It briefly flashes on then goes away - (it looks like its becoming transparent).I have used this app almost since it first appeared (and before that as AFCAD) but the AFX preview feature is really cool...Its not related to runway heights, fake runways or any of the usual causes and it does sometimes work - (which is really annoying).I recently installed Acceleration, but it was flaky before that (anyway I already had SP2).I am presently having to load SBuilderX tiles into AFX as background images which works - but its tedious! Geoff

Thanks to the Flight 1 folk, I pass this on:Turned out to be related to the traffic; seems I may have some incompatible A/C in the traffic files, on their advice I reduced the traffic volume to zero and the preview works again.No big deal - I don't need traffic when I am working on the scenery!Geoff