Having problems generating a report model from a data source in SharePoint Server
Microsoft has released a hotfix that should alleviate this problem which applies when you generate a report model from a data source within SharePoint Server 2007 and 3.0
When you generate the model the following error is returned "Server was unable to process request. ---> The operation has timed out"
For the hotfix and further information use the following link
http://support.microsoft.com/kb/956213/EN-US
Thanks
Chris