Audio dropouts, just started

This problem just started 2 days ago with my XL4, nothing in my setup has physically changed. The HDMI output from the XL4 goes to my Onkyo receiver and from there to the TV. Whether I'm watching live TV or a recorded program, every few minutes I get an audio dropout, the Dolby Digital indicator on the receiver drops then returns 10-20 seconds later and the audio returns, Its making it pretty hard to watch anything. The video is fine and other HDMI audio going through the receiver is fine, it just seems to be the Tivo. I've rebooted the Tivo and the receiver so I'm not sure what to look at next.



Anyone else having this problem?