Plane horizontal rotation problem

Hello,

I am pretty new to ArduPilot project, but i am trying to build and run SITL simulation on Windows. With instrucion given on this website: http://dev.ardupilot.com/wiki/sitl-native-on-windows/ I managed to easily build everything. Problem started after I run sim_vehicle.sh.

After ArduPlane initialize and show it’s position on map plane start to rotate around in yaw axis. If I connect to MP it shows “Error pos horiz variance”. I thought it may be some parameters that are needed to be changed but with no success.I tried to Google it and found nothing like this ever happen. What is more bizarre when I try to run ArduCopter everything works great with no error.

I will be very grateful for any help.