No traffic (no shadows OFF)

[smasma]

This normally happens when there is a FS8 traffic file being run in fsx.  It is most likely from an addon scenery or payware scenery.

[tom767]

I'v finally solved the problem. I found and disabled "vfr-airfields traffic" in FSX's scenery list (don't know what addon it's from). When I used Ultimate traffic everything was OK, but after MyTrafficX installation only Zurich became empty of traffic. So, besides deleting old FS9 compatible traffic.bgl like file from FS folder it's good to analyse all installed scenerys from "settings/scenery library" list in FSX.
Thanks to everybody for your help - you make me to solve the problem.