text: Check your cable connections to make sure they are all tightened and secure. If you have a cell phone near your TV move it away, some services (like Cingular) interfere with a lot of monitors.\n\nYou may need a new splitter for your connection in your cable box or your signal might be weak or noisy -- these are problems with your cable provider and they usually come out and check for free if you can't figure the problem out yourself.