asanal wrote on Feb 8^th, 2013 at 4:43pm:

I thought so too. Every time when I go through clouds. Airspeed probe frozen. Manually I continue to climb. Even throttle open full and N1 shows full power. 777 receives stall warning and plane plunges from 320FT to ocean .It looks like coding logic connected to airspeed indication rather the power setting in this scenario.(?) :-/

Other developers have coded pitot heat automatically turned on, if it's not pilot-controlled in their particular A/C.

This, unfortunately, is yet to come for the 777 Captain, but still:

A stall depends on the angle of attack, not on airspeed. So it shouldn't matter for any A/C, what airspeed is indicated (IAS). This is the way (AoA-, not IAS-dependend) a stall should be implemented in the 777 Captain, as well ...