Computer is a member of a Windows 2003 domain and when connected to the network it is slow to double click open documents, whether word, excel, txt or whatever. Opening up files direct from word, excel is ok - it is just double clicking or right click/open that is slow (like about 10 seconds).
Both networked and local documents experience this problem. If the network is unplugged the problem goes away.
The PC is a new core 2 duo lenovo, 1 gig ram etc. All windows updates are installed as well as office xp service packs.