joystick help

I have an old MS force feedback joystick. it worked fine until my computer
crashed. After reinstalling Win XP Pro and FS 2004. I put the stick on and
the throttle control only work for 2/3 of the range of the wheel. I have
calibrated the stick and during the calibration I hade full range
effectiveness with the throttle and the whole stick worked correctly. when I
tried to use it during game it only worked in the 33 to 66 percent range.
BTW it worked fine before the crash.
Can someone please help
Thanks
Pj