Shermann wrote on Feb 18^th, 2013 at 3:18pm:

None of u use FSUICP to assign axes?

I have a Saitek X52. I assign as much as I can including the axes in FSX. The rest I assign through the Saitek software. I have FSUIPC installed but primarily for CTDs. I don't use it for for the joystick at all. I do have differential brakes set on the rear hat switch of my throttle and it works fine.

I've had calibration issues which can be quite frustrating. Try FSX calibration and also use any software that came with your joystick. You may have to unplug the joystick, uninstall driver, reboot and reinstall driver.

Ben