Troubleshooting the “This Page has been modified since you opened it. You must open the page again." error

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Problem:

When anyone tried to edit a content editor web part on a MOSS site, they would get the following error:

 

“This Page has been modified since you opened it. You must open the page again.

 

Refresh page“

 

The users would hit F5 to refresh the page, but they would still get the same error message.

 

 

Tools used to help troubleshoot: Sharepoint Designer, MOSS Site and Content and Structure Page

Resolution:

1. We checked that no pages were checked out or locked by another user, using the tools above. We didn’t find anything locking this file in SPD or via the site

2. Rather than hitting F5, we actually clicked the “Refresh Page” link, then went to Edit Page and edit the content editor web part and the error message was gone