Hey, I'm desperate here. I've been trying to solve this prob;em for 3 days now. My pitch modes for my autopilot disengage as soon as I hit the CMD A or B A/P engage button. I've tried disabling XUIPC and rebooting GIZMO64 about 10 times, and the issue still presides. Bear into mind, I've entered all of my route and performance information correctly, and all my pitch modes are working until I engage the autopilot. The weird part is that my pitch modes only work if I start my flight mid air, but every time I leave the ground, the pitch modes including VNAV, VS, FLCH disengage as soon as the A/P is engaged. I've tried all possible solutions including reinstalling my IXEG 737, but nothing is working. Please help.