http://blogs.msdn.com/brismith/archive/2009/05/27/project-server-webcast-check-in-pending-secrets-revealed.aspxWell maybe not secrets, but hopefully the webcast tomorrow (5/28/2009) will give more insight to the workings and architecture of the Active Cache.&#160; And if “tomorrow” is in the past the webcast is/was recorded.&#160; Chris Boyd will be presentingen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/brismith/archive/2009/05/27/project-server-webcast-check-in-pending-secrets-revealed.aspx#9777443Thu, 18 Jun 2009 23:49:49 GMT91d46819-8472-40ad-a661-2c78acb4018c:9777443Chauncey Wenner<P>I think I know what might be causing my project files to lock up and remain as Read-only...</P> <P>After &gt;save, I then &gt;publish .. at which point I’m happy. When I try to exit the project file I am asked whether I want to save the project prior to exiting…. Out of habit I said “yes”. </P> <P>I’m thinking THAT along with some handshake delays is what causes the problem. As soon as I do that extra save, I effectively have a file different from the one that I just published.</P>