Any new server you set up needs to index your shared files and create a library for the DLNA clients to browse (by Artist, title, etc) but it will only do this once, then new files need to be added. It sounds as if the PCSM indexing hasn't completed - a refresh should pick up the rest of the files from T to Z.
The WMP problem sounds like a permissions issue, or maybe a firewall block.
I have just bought the LE37C650 TV and trying to stream from my pc (Windows 7 by the way) to the TV but have a few problems:
1) I cant see my itunes music without adding the entire library to the PC Share Manager, however this takes hours veriifying and leaves all my music in sub folders sorted by artist, additionally it only save artists up to T (so any artists from T to Z are missing)! Also I cant access any playlists?
2) I cant get it to sync with Windows Media Player (11) at all even when i set my WMP to send and allow full media streaming access and even if i try to 'push' using the play to option. The TV just wont accept unless I use the PCSM
Can anyone help? Ideally I dont want to have to add everything I want to share individually to the PCSM and wait hours to verify - I want a simple stream option?