Pam,
Which System and version of Excel are you using, and was the Workbook
created on a prior vesion of Excel?
Is the workbook very large? - do you get warnings about Circular References?
- do you have a lot of references to other books?
Is there any VBA code in this workbook? Do you have Adobe Acrobat loaded?
Any further clues?
Can you easily create a new workbook, and for each sheet, Copy and Paste
Formats, then Copy and Paste all data?