I've noticed a little problem, had it since 0.3 or 4 which ever was the first number! If you do your overhead flows, set the electrical stuff up fire up the APU and switch to APU GEN, after a while the panel reverts to the initial settings, ie, gens off, packs off bleed air off, yaw damper off etc, doesn't do it if you start the engines and run the elctricity of GEN1 and 2 though. I think it did it on ext power too, but can't remember as it was a while ago that I used ext power and just sat at the gate!