Hi I bought the 757 and all the expansion packs a while ago. When ever I start FSX with it I switch the IRS knobs to ALIGN and wait for them to go out. Then when they do I switch them to NAV. Then I take off but when I'm ready to engage autopilot the buttons will not light up. I can press the disengage button but the engage buttons will simply not light up. I've tried to figure out what to do for weeks but just cannot!!! Please help me! >:(