Maybe I need a new title to catch some attention...

http://www.avsforum.com/avs-vb/showthread.php?t=952169

and same problem reported last month. I only got one response...

http://www.avsforum.com/avs-vb/showthread.php?p=12184753#post12184753

Basically, there are scan lines displayed at the top which actually are the very bottom of the image.

Might want to try here - http://www.avsforum.com/avs-vb/forumdisplay.php?f=42

That section is more focused on DVRs.

If you still aren't getting many responses, maybe no one else that has found this forum that's using that same DVR has the same problem...