Thanks for the snapshot of how it's supposed to work. I use the NET button and the PC comes up. I have only one media server and I choose it. I get the same 4 choices you do - Music, Videos, Pictures, Playlists.
When I select Music, the response is "No content." There is nothing further to choose. (In my WMP Music folder on my pc, there are dozens of albums, but not any huge number.)
When I choose Playlists, it returns "Playlists" and "Folders." Playlists connects to all the playlists I set up in WMP 12 -- I can play them all on the 2000. Folders gives me "G:" -- the drive I store my media on. Clicking on the G: drive gives me "Music" -- but Music has only 5 albums in it. I can't figure out why it brings up those 5 and no others. G: also gives me another music folder (called "Austin") and two sub-folders within it -- but only a few albums from each (there are many more actually on the pc folder).
So the DLNA protocol is not passing all the necessary directory information to the 2000.
Your comment about whether there are a lot of other media files, like pictures, which may make it hang up, is interesting. I have one main drive on my pc, with several partitions. As I said, the G: partition holds all my media -- but that includes music AND photos -- a lot of photos. I do not store music in "My Documents/Music. on my C: drive" I find it's much easier to manage backups when data files are separated by type into logical drives. Are you suggesting it might be worth moving everything but music out of that partition?
In case it's helpful, my pc is a Dell XPS420, 8GB RAM, 1 TB main drive, 500MB secondary internal drive, 3 external drives connected via firewire/USB/e_SATA). The media partition, G:, that WMP gets all its music from is on the main drive. (I use all the other drives for backing up.) I run Win7 Ultimate 64-bit. No problems, and WMP works fine on the pc.
I've been trying to figure out why a handful of albums comes up on the 2000 -- even checked Users/[my name]/My Documents and AppData to see whether those albums are somehow tagged in there, but they are not. I'm not sure what they have in common. It's also interesting that the playlists from my pc all show up on the 2000 -- why, when the rest of "Music" doesn't?
Do you keep all your media in the My Documents folder on your C: drive?