When I fly near clouds (not nececerilly in them or even very close) and have the probe heat on the airspeed indicator freezes up. I think I was able to prevent the problem by putting on the anit ice before entering clouds, but I cant see why The indicator would freeze up even before entering any clouds or going within 5000 feet of the clouds. I am using active sky and have a registered version of fsuipc. Thank you in advance.

First, please check the forum rules at the pinned at the top. You need to sign your posts.Second, try doing a search. This issue has been discussed on a number of times and there is a lot of good information available.

Thank you,Mike Iacovetta