Of course, this is going to happen to me.
Just bought my wife an 08 WK Laredo. Really love it, slate blue with a black and charcoal interior. When we looked at it and test drove it, the windows all worked with no problem. Of course, when we get it home the passenger side window won't roll up. It is definitely a controller issue, but not sure if it is the driver's or passengers. The window rolls down fine with both controllers, but only will roll back up with the passenger side one. Rolls up perfectly, no problem with pass side switch. Nothing at all trying with the driver's side.
When I have XJs with a similar problem, it is usually the passenger side controller. I just want to be sure that is what it probably is before I start popping door panels on our 71k mile WK.