I have comcast digital cable and digital cable. When I plug my PS2 into my router, then plug it into my tv, I get diagonal lines that go across the screen. I also tried connected 2 xboxs together and they weren't connected to the internet, and I still got the lines. I know its not my TV because I've tried 3 other TVs. I tried it at my parent's house and I didn't get the problem, but my friend has the same problem. I called comcast but they aren't coming for 2 weeks. Anyone know how to fix this?