Wireless Mouse Issue

We had two users testing the R50L. They both had wireless mice. They were under the impression that the system was slow and unresponsive because they would try to click on things and nothing happened.
I tried and same thing. I noticed that right clicking would bring up the context menu just fine, except that it was about 3 inches to the right of the mouse pointer.

So if you move the mouse that far to the left and click, it works! It's almost like the mouse needs calibration or something... I gave them wired mice and all is well.

Anyone else see this?