Quote:
On the SharePoint machine go to
C:\Inetpub\wwwroot\wss\VirtualDirectories\80\resou rces
Right click on the SLG.ExceptionHandling.config file and select Open With | Notepad
edit the line that reads
<!--<exceptionDetailViewer userName="User.Name" />-->
so that it looks like this
<exceptionDetailViewer userName="slg\testslg" />
Where slg\testslg is the domain\username that you were using when the error occurred
Save the changes to this file and then re-load the webpart on which the error occurred
You should now see the FULL error message
Also sorry to ask the obvious but the user your accessing with does have SIMS permissions yeah?