When navigating DFS shares from a terminal server session, windows explorer runs slow and hangs w/o any error messages. this issue appears when using "back" or "up folder" in windows explorer (after 2 or 3 folder changes)
and some times the delay is so bad that when you add a new file or folder it wont appear on your screen until you exit the share and then re-enter the share.

Navigating via \\servername\sharename runs longer than navigating via \\Namespace\Sharename, before hanging up windows explorer (but not much)

I have (2) Win2k3 r2 x64 DC's / File servers running DFS-R
and (2) Win2k3 r2 x64 Terminal servers

this issue does not appear on XP-Pro PC's whether browsing via \\servername\share name or Namespace\sharename

I would chuck DFS but they want to use it to manage shares between multiple sites
I have tried using traget shares vs folder shares, sharing files off the Terminal servers, removing replication... nothing helps