HELP!!!!! My cable modem at my house is giving me fits. It went out on Monday. Called Time Warner and they could not schedule me for a house call till next Wednesday. So I decided to swap modems to see if the modem was the problem. That wasn't the case as the new one did not work either. I plugged a TV into the cable outlet where my Cable Modem is hooked up, and it got a good picture. But still no inbound cable signal on the modem. I can't wait till Wednesday for Time Warner to come out. They...