Hi and welcome to the IXEG 737 - if you are new to the 737, you will likely run into a few things that could give you a little headache. I make this list here to help you avoid that: When changing or modifying the route in the FMS, the simulator framerate gets really slow. This is your antivirus at work, live-checking all in and out data operations. Create an exception in Windows Defender or other antivirus software for the whole X-Plane folder. I can´t move the throttles. Often thi