Make sure all cables going to/from all the boxes are secure. Remove each one and then reconnect it. What cable are you using for the final connection to the tv? If you are already using a HDMI cable, try a different HDMI cable if you have one. If you are not using HDMI, try one if you have HDMI ports available.

Thanks azinoh!

I removed and reconnected each cable. I still had the same problem when on the AV setting (the picture goes dark with a red tint).

I do not have an HDMI port on the TV. The final connection was an AV cable with the yellow/red/white connectors. I switched this cable for a new cable that has the S-video/red/ white connectors. With this connection, the picture is no longer dark but has poor color and all the charactors have a sparkling halo around them (like Edward Cullen). This is only when the TV is set to the AV setting so that I can use the combo.

Thanks again for the input! Any suggestions on how to connect the units to avoid these problems will be greatly appreciated.