Hi Curran 919
Did you ever find a resolve for this, or did you in fact deal with it at the computer output (i.e. graphics card )
Im running into similar problems with a UE55A, which states it can be mounted in vertical position but thats all the detail I can find. I have it hooked upto an Apple TV gen 3, with Macmini in the background steaming to it.
Any advice would be great thanks