Office Pro 2003 “Save In” problems

Problem is relevant only to Office 2003; other Windows XP software not affected. When selecting a different folder location to save a file in the “Save In” pull down menu, a delay of over 30 seconds occurs before the new folder becomes visible. This problem occurs in all Office Suite software. However, any software not a part of the Office Suite does not have this “delay” problem.
Is there a fix out there for this problem? Office SP2 downloaded.