Anybody have the Panny XR-55 and Toshiba HD-A1?

Awhile back I had the Toshiba HD-A1, and I hooked it up to my Panasonic SA-XR-55 via the analog inputs, but for some reason I couldn't get the center channel to work. So I only used it via the optical output. Then I returned the HD-A1. Now I'm thinking of either getting the Xbox 360 HD-DVD add on, or another HD-A1, and the big benefit of going with the HD-A1 was the analog outs, but since I had a problem before, I was wondering if any other XR-55 owners had any problems with it like I did?



If I can't enjoy True HD with the XR-55 anyways, then I might as well get the 360 HD-DVD add on.