I've recently purchased Activesky Evolution and am suffering violent windshifts where the wind shifts 180 degrees in fractions of a second (enough to go from a 70knot overspeed to stall on a flight just now, having 5 shifts in about). Reading back it seems that virtual stations and enhanced route coverage could be a cause, but both options are disabled on my setup...

Hello.I ran into the same problem. For me updating FSUPIC solved the problem (as described here:http://forum.avsim.net/topic/356533-stuck-or-invalid-winds-fix-here/). I hope this helps.