Post-hotfix installation error - build 7608

Post-hotfix installation error - build 7608

After installing hotfix build 7608, we are intermittently receiving the following error:
 
"Error has occurred during response. Please view the error window for more details."
 
However, it does not spawn an error window. It spawns a new login window or a badly formatted GUI view. There does not seem to be any specific action that is performed. It can be after saving a request or changing values, to just a random pop-up after a period of inactivity on a standard view.
 
Windows Server 2008 - Application server
MSSQL database (separate server)
 
Any ideas would be welcome and appreciated.
 
Thank you,
Jonathan

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