Konqueror lockups on root directory

Any time I open Konqueror with either 'file:/' or with the root folder in the tree view panel, it locks up. It doesn't matter whether I do it as a user or root. When I close the Konqueror window with the close button, after a 10 or 15 seconds I get a dialog box with the following: Window with title "craig - Konqueror" is not responding. This window belongs to application konqueror (PID=7087, hostname=localhost). Do you wish to terminate this application? (All unsaved data in this application will be lost.) Any ideas what might be the problem? Where would I look for the config files and log files for Konqueror? Thanks, Craig