Nero

Ok, I just got the new RCA HD-DVD player and I'm having a couple issues with it. My biggest issue is when playing SD-DVDs the receiver seems to constantly be attempting to figure out what to do. Even when I do something as simple as going to the next chapter the receiver seems to be re-acquiring what sort of signal it is getting.

I've never heard anyone have this issue, so I"m wondering if I hooked something up incorrectly or what...

For information: I have an HDMI cable hooked to the TV, and a coaxial cable connected to my receiver.