Hi, I am wondering if someone could help me. We have a BeoVision 8-32, and just recently the screen goes to black after 5 or 10 minutes of viewing. The only way to get it back is by turning it off, and then on again. It seems to be getting worst, and is now doing it 8 or 10 times within an hour! Can anyone help me fix this without taking it to the shop? Thanks!