When you try to access Reports in Microsoft Dynamics CRM 3.0, you receive the following error message:
Error An error has occurred. For more information, contact your system administrator.
If the DevErrors value is set to "On" in the Web.config file, you receive the following error message:
With Dev Errors: Server Error in '/' Application.
The request failed with HTTP status 401: Unauthorized.
To resolve this issue, check the following links: