I am having an interesting problem that has grown to be more of a pain lately. Sometimes (I am still looking for a pattern) after I run an app in full screen, but not always, the touch screen becomes unresponsive. However when it happens, I can press the power button and tap cancel, and the screen responds again. Other times I may have to do that "Power Button/Cancel" a few times to get it responsive again.

Other than that, and when it is working, the screen operates as normal.

Has anyone else had this problem?