Advertisements Hello, I am on my third warranty replaced bolt. Recently the weirdest behavior started happening. The picture will start getting very pixelated and the signal will drop alltogether. At first I blamed the tuning adapter or coax cable and replaced them both. The issue continued happening. Now it seems to be getting worse and I’ve found that if I just lightly smack the top of the bolt it will clear it right up. Has anyone else had this happen?