Looking in the event viewer, I found a lot of errors provide by Microsoft Project Server Tracing Eventlog Provider. The error follow like this : Component: PjSvrUtl File: C:\Office\devsp\project\WebClient\source\server\pjsvrutl\PjENAgent.cpp Line: 534 Error Number: 0x80040212 Description: <Description><![CDATA[Assert Detected. The error code was also included.]]></Description> and like this too: File: C:\Office\devsp\project\WebClient\source\utility\pjsmtpemail.cpp Line: 438 Error Number: 0x80040212 Description: <Description><![CDATA[Assert Detected. The error code was also included.]]></Description> ___________________________________ Component: CDO.Message.1 Description: <Description><![CDATA[The transport lost its connection to the server. ]]></Description> Someone already pass by this? How can I solv ? Thanks