I'm having the same problem- nothing in the vc is clickable, and no gauges work, which means all of my CS-727 aircraft are pretty much unflyable. I have all 3 727 Captain packs and they all worked fine (except for the wonky AP) in FSX, but now I installed them into FSX:SE and they are unflyable. Just to make sure, I just did a seat-of-the-pants takeoff and found that the airspeed indicator, altimeter, VSI, engine gauges... NOTHING works inside the cockpit except those things that are directly controllable using joystick buttons and/or hotkeys (lights, for example). But without a working airspeed, artificial horizon, VSI, etc. my purchases are pretty much useless.

I have read the rest of this thread, and unfortunately it's mostly gobbledygook to me- what the kitten is "FSUIPC?" Do I need it, and if so, what does it do, why do I need it and where would I get it? I used the Capt Sim installer just like before, and the Steam edition is installed on a separate drive from windows, so UAC isn't the problem, and each time I fly a new aircraft I make sure to answer YES to the Trusted app? question.

Thanks in advance for any help.