I'd start trouble shooting by eliminating all auto-opening workbooks and
add-ins. That would entail unchecking everything under Tools, Add-ins and
by removing all workbooks in your XLSTART folders (there are 2). Also the
folder (if any) indicated under Tools, Options, General, "At Startup Open
All Files In".

--
Jim Rech
Excel MVP
"Ron Rosenfeld" wrote in message
...
| This morning, when starting up Excel, I receive an error message.
|
| The message occurs prior to the opening of the default workbook (Book1).
|
| The message reads "This workbook is currently referenced by another
workbook
| and cannot be closed".
|
| If I click on "OK", the opening proceeds normally with the default
workbook
| opening.
|
| In MSKB, the only discussion I could locate with regard to this message
had to
| do with programmatically controlled operations; but I have not introduced
any
| macros that should be doing this.
|
| How can I troubleshoot this?
|
| Windows XP SP2; Excel 2002 SP3
|
| Thanks for any help.
|
| --ron