http://blogs.technet.com/mikelag/archive/2009/02/12/client-rpc-dialog-box-questionnaire-for-administrators.aspxThere are times when you are troubleshooting an Exchange Server issue where it appears that the server is performing OK, but the users are still complaining of the dreaded RPC dialog box and hangs in their client. Most of the time an Exchange administratoren-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/mikelag/archive/2009/02/12/client-rpc-dialog-box-questionnaire-for-administrators.aspx#3201974Fri, 13 Feb 2009 22:04:22 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3201974subject: exchange<p>Outlook Live: Microsoft’s efforts towards living in the cloud How to troubleshoot performance issues</p>