We’ve been trying to work around a problem with Offline files, where the offline files cache is sync’ed for all users, rather than just the connected user.
I found a thread about it:
http://blogs.msdn.com/jonathanh/archive/2004/05/02/124900.aspx
which continues on
http://blogs.msdn.com/jonathanh/archive/2004/10/06/239025.aspx
Poppa VT 