i'd say second annoying thing - is incomplete dx10. all that flicker and loss of antialiasing if you use drivers to do it, so you gotta turn it on in FSX itself and its reealy eats power. Thats annoying for sure :) i'd say even more, - that SUCKS :)

and how about super-small MAP window? you cant resize it, and map controls aint make you happier too. That's can be annoying all the time :)

and crazy fuel trucks that drives across runway when you just about to land, and then they can collide with you while you taxiing to gate. that is totally annoying and reeeealy unkool :)