When using a 360 controller, and going to custom control mapping, changes don't take when I hit buttons to change it. I have to hit a key on my keyboard to even back out of the selection. I'd really like to change the controls, because I can't deal with the default Y button jump in Bethesda games.

To be clear, I'm actually using Motion in Joy to use a PS3 controller in 360 controller mode, but this should have no bearing on anything.