Windows XP Offline Files (Barfing Piles)

Ok.. here's the scene:

I have a room set up with 36 XP machines running XP Pro. They are all connected to a Win2K server. each machine is connected to a share on the server wiht a mapped drive. each machine's "My documents" folder points to the same share. With this configured, every machines my docs folder is identical. This works great. However, I also have offline files configured on each machine.

The machines will sync to the server on shutdown, but the mydocs isn't the ONLY think syncing... I can't seem to prevent syncing from OTHER folders. IS there a registry setting that enforces which folders to syncronize? I can go to the offline files settings and choose wich ones I want to syncronise but it does not save that setting when I uncheck locations.

Help!