AppleTV menu lists everything in pairs?

My AppleTV is hooked up to my network via an ethernet cable, not wireless. Ever since I did that, I started seeing double posts for everything I have. If the menu used to show this:

Shrek
Braveheart
Alien

Now it shows this:

Shrek
Shrek
Braveheart
Braveheart
Alien
Alien

All of my movies (and songs) are streamed - not copied to the AppleTV and I can easily verify this by looking at the HD usage on my AppleTV.

If I restart iTunes and power off and power back on my AppleTV then it goes back to listing everything right. However, if I lose connection to the iTunes and then do a re-attach - things get goofy again.

Anyone have any ideas?

Thanks in advance,
Mark