Thursday, September 27, 2007
We were seeing an intermittent problem on our MOSS farm whereby we'd receive the following error when saving changes to list items and web pages etc.
"This page has been modified since you opened it. You must open the page again."
There is an article on TechNet talking about a similar issue which affects SharePoint Portal Server 2003 when you're using Windows NLB and have affinity set to 'none' as we had on our MOSS farm. It suggests making sessions sticky (as Joel Oleson does) which we've done, and up to this point it looks to have resolved the issue with no side effects.