Hi.. I am having problems of setting up flaps for my PMDG B747-400. I have assigned Y rotation as my flaps, but every time I rotated Y Rotation all the way down, the maximum flaps I can reach is only flaps 25. Throttle sensitivity setting in my FS2004 is already set to the maximum 100%. Null zone is already set to 0. This strange thing only happens with PMDG B747-400. With other aircrafts such as PMDG 737NG, PIC, WILCO, and the default aircrafts the flaps are working correctly. BTW, I am only using unregistered FSIUPC version.Please help me...