I've started having problems with the flap lever for the PMDG 747 in FS9. It sounds like exactly the same problem another user has had, but in FSX:
http://forums.simflight.com/viewtopic.php?f=54&t=73202&st=0&sk=t&sd=a
It has only started after I installed the PMDG MD11, when, during it's installation, it installed the latest FSUIPC.dll for FS9 (v3.85).
Prior to this, I was using v3.82 with no problems.
I have gone back to using 3.82, and the issue is resolved, but using 3.85, the following happened:
Flap Lever Position.......747 Flap Setting
Up (min)...................Up
1............................Up
5............................1
10...........................5
20...........................10
25...........................20
30 (max)...................25
I was unable to get to flap 30 without using the 2D panel. FSUIPC seemed to be workin g correctly - the flaps axis was sent to FSUIPC for callibration, and it was callibrated correctly. The OUT value would change for flaps 1, but the 747 didn't respond until the lever wwas put at flaps 5, when the 747 then moved flaps to 1.
If the axis was not callibrated, the full range was achievable, albeit in the wrong direction.
From reading the above post, it does seem like exactly the same problem, just with FS9.
-Phil