Joy 19 (toggle head look) isn't working for me...what about you guys?
The default profile of the X52 Pro has the wheel button programmed to make a right mouse button click, instead of acting as a Joystick button.
Elite is expecting it to be a Joystick button.
Either rebind it in Elite by selecting and clicking again (where it'll change to RMB) _OR_ fire up the SST Profile Editor that came with the X52 Drivers and make sure everything is set to Unprogrammed or Fallback
You'll need to delete the "+ pinky" modes too
Save that profile, then select it as your startup profile in the start bar thingy.