I have purchased 3 atari 2600s in the last couple of weeks. I have finally gotten around to testing them and they all have the same problem. When you put in a game and turn it on, there are some lines that appear going down the left side of the screen. Game play is not affected. I have switched out games, cords, switchboxes and TVs. The same problem. I even just successfully performed the AV out mod on the 4 switch system. It still has the problem. Any Ideas. Is there something I can adjust or a new resistor that needs to be added somewhere? It would seem that since they are all having the same problem, it could be a common one. Any help is going to be greatly appreciated.