Excel 2007 : Protected Workbook - Only Option is to Protect? No Unprotect

All,

I am not asking for help breaking a password protected workbook. My issue is I have a Workbook that I am the author of and I have it protected using "Protect Workbook" from the review panel. When I open the file that button shows "Unprotect Workbook", I can put in my password and unprotect and go about my business.

However My boss who also needs to use the file is unable to do this. When they open the file the review panel still says "Protect Workbook", but when trying to do things such as Unhide a sheet the option is not available because I am assuming excel knows the workbook is protected. If he clicks "Protect Workbook" nothing happens.

Does anyone have any thoughts on this? I have a third user that can open and unprotect this file just fine. Maybe its a setting?

Thank you,
Jon

Nope the workbook is not shared. My boss is accessing the file by navigating through windows explorer and then opening it. I am completely stumped.

Actually I just made a second file and protected using the Protect Sheet. He has the same issue on this file as well. Maybe he needs to reinstall excel?

Whoops just fixed that. We are both on 2007.