were flying our A3 yesterday and the controller was switching to Attitude mode when we were switched to P (GPS).  Our iOSD MKII was reporting 20 satellites.  Any idea what the deal is?  I'm wondering if the iOSD see's 20 satellites, but could it be counting some satellites three times because there are three GPS pucks?  Why would the system drop out of GPS when there seem to be an abundance of satellites?

Can you upload a few pictures of your copter please?
Maybe the distance between the lipos and compass is to close.

Hope not. Can't change it.  And it's never been a problem before.  Don't seem to be able to simply drop a photo in here or navigate to a local drive.  But the batteries mount vertically on the side of the vehicle.  the tops of all three GPS pucks are 170mm away from the ends of the batteries.  That's pretty far. So..don't think that's the issue.  Wadaythink?

Yes, 17 cm should be far enough.

Press advanced, then you can upload a picture (<1000 kB).
(My A3 Testcopter)

Have you tried looking at the .DAT file via the Assistant 2 Software? Once you enter SD card mode, you should be able to select a .DAT file from the A3 to review it.