I cannot get the AP to engage on the default 747. I am using the 3d panel. Does anyone know how to fix?

How are you going about it? Does it work on other aircraft? Are you pressing Z or clicking with a mouse? Buttons are easier to click if you go to 2D view with Shift 1. I've never had a problem with AP, and I use all default aircraft.

Thanks for the interest. It works on all the other planes. Pressing 'Z' and changing to the 2 panel will not either.

Clarification. I got it to work on the 2D panel, but not the 3D.