Buttons not working with Logitech Force3D Pro in 747-400

Dear PMDG,it seems there is a small problem with the keybinds in the 747.The buttons 7,8,9,10,11 and 12 are not working with the Force3 Pro in the 747. They do work in the 737NG.I use button 7 to disengage the Autopilot, and button 8 to disengage the Autothrottle.They are handy to use while on final approach. Cuz then you wont have to press CTRL+R or something real fast to disengage it.How come those buttons are not working in the 747, but do work in the 737?I have the latest drivers for my Joystick!Thanks in advance.