Can you open the Event Log on the CRM server & look under the Application log as there will be a more detailed error message of what is happening. You can then post the details here.
Sometime the details in the event log are not great, so you may need to enable platform tracing to get the low-level detail behind your issue. So you would need to,
-Enabled tracing using this tool (http://mscrmtools.blogspot.co.uk/2011/04/new-tool-crmdiagtool-2011.html)
-Carry out the action that causes the issue
-Stop tracing
-Check the generated trace files for the detailed error message
John Grace (Founder, North52) Simplifying CRM & xRM development
How? Check out the Free Community Edition of Formula Manager at,
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