So my Boss seen me cleaning her 8330 and decided to try it herself this time around. Somehow she managed to make it so that the trackball now makes the directions on her screen messed up. When she scrolls down or up it goes left and right and when she scrolls left and right it moves up and down. Anyone else have this issues? Is there a fix for this?

I have taken back apart multiple times and rearanges the sensor wheels as well as taken my ball out of my curve and put it in her (which worked fine). I am at a loss as to what could be causing this. Any suggestion?