Thanks Bunter I did what you advised ,it has cleaned it & I had no trouble viewing the debate last night!   But after 2 hours the TV screen ,not the PC went a funny pink.blue color now this happened for the first time the night before & my computer said it was my USBs fault, it is only 1 year old could it have failed so soon? I was hoping the cleaning up would solve this new problem.   I want to get the larger android box, can you advise which make/model to get & where to buy it?