2003 X64 server, Windows Explorer running slow

I have 2 Win2k2003 x64 Terminal Servers
1. when users r-click for properties it takes a long time for the properties window to display
2. when users open my computer it takes a while to display
3. When users navigate network shares explorer locks up when they use “up folder” or “back”

these sysmptoms are not too bad at first but then get worse as you navigate the folders

when logged into console as admin I can recreate the issues by navigating quickly through the networks shares. the issue does not appear on any PC’s (xp32) or on the DC’s (W2k3x64)