I have had a Sanyo touchscreen installed in my wall to operate a PC juke box. I removed the old plastic frame surround so that I could use an aluminium frame I had made in Germany. The frame looks great but interferes with the operation of the screen. The screen is capacititive touch enabled and I'm assuming it's the fact that the frame is metal that is causing the problem. Anything I can do to get round this? Would "earthing" the frame through the screen chassis help?