I have a shared workbook that approximately 5 people use. Last week it
started displaying the message that is locked for editing by a user and could
only be opened in Read Only mode. The user listed is not using the shared
workbook. In fact, if he tries to open the document now it says he get the
same message that is is locked by him. If I could simply make a copy and
delete the old one, that would be great. However, attempts at deleting the
workbook fail as it thinks it's in use.

Any ideas on how to get around this would be appreciated. We're using
Office 2003 and the workbook in in a shared location on our corp. network.
It is not a rights issue on the server.