I have a HVR-1600 configured with an over the air antenna connected to the digital video input and a DirecTV DVR connected to the S-Video port. With the latest SVN I have been able to get the over -the-air channels working, but external channels/S-video do not appear (black screen). The WinTV2k application shows the SVHS connection is working properly, but MP does not seem to work - anyone else seeing this problem?