I just got my first 5200 system ( 2 port)up and running, i recently got a used system from a lot. I only had to replace the video cable and have it attached to the back of the tv thru co-ox with a female to male connector. It plays but it is all black and white? Its a color tv, i been thru all the menus on it, theres no black and white choice. Can anyone tell me what the problem is and how do i fix it? Thanks in advance!!!!!