DVR after new GUI update changing channels on it's own

After receiving the new GUI the other day (first appearance Dec 22nd), my DVR is behaving a bit oddly.  I also have a standard HD receiver which appears to be just fine, including streaming from the misbehaving DVR.

The problem is that it occasionally tunes itself to channel 9.  I can either be watching recorded content or simply be viewing another channel.

I haven't started to record when the events occur, but rest assured they are occurring.  I'll start to keep a log.

The only thing that might be different for me is that I'm controlling my DVR with an automation system, and I'm using the USB port in the back to utilize the RS-232 control of the unit.  This worked perfectly before the GUI update for a long time, so I don't think this is the issue.  I also have a a 1Tb hard drive attached to the unit via the eSATA port, but again this has not been an issue in the past.

I've read the other posts, and I'm only making a new thread as it was recommended for the other "me too's" that jumped onto the other mentioned posts.  I've done NOTHING to try and fix the problem yet.

Thoughts?  I'm an AV integrator and I have at least one client with the same problem (except his DVR is tuning to HBO channel 501).