I configured SiteEdit in our system (Tridion 2009 SP1).
When a user is trying to access to the system we get the following error:
Unable to Initialize TDSE object. Access is denied for the user . Error Code: 0x80040302 (-2147220734) Call stack: SystemBLST.GetUserContext SystemBLST.IBLSecurityST_GetUserContext TDSE.Initialize
Someone has seen this error before?