I have a backup of all my mp3's on a drive attached to a linksys NSLU2 nas. With my 770, I can open the web server on the NSLU2, browse to a file, click, get the choice of open/save/cancel, select open, the media player opens and the file plays just fine.

If I try the same thing on my new 800, it goes along as above, starts playing, but about 6-8 seconds in, it stops with a pop-up saying 'Unable to Perform Operation. Try Again.'. Of course, trying again results in the same error.

I can save the file on the 800, and once saved, it plays just fine. It just won't play directly from the nas with the 800 -- even though it does with the 770.

Any ideas?