Bug with File Insight: not detecting digital signature

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NIS File Insight mistakenly flags my MSI installer as a threat by saying it has no digital signature. 

 

After NIS File Insight started flagging my MSI as a threat, i started applying the File Insight function to a series of MSIs from various publishers. It seems only heavy weight software companies (e.g. Microsoft, Sun, Norton) knew the secret way to get File Insight to recognize even the existence of a digital signature.  

 

This is obviously a bug, and, from surfing through this message board, not a new one.  Exactly two years ago, the same issue was reported with screenshots:

 

http://community.norton.com/t5/Norton-Internet-Security-Norton/Norton-Internet-Security-Cannot-Detect-Frap-s-Digital-Signature/m-p/183708/highlight/true#M91845

 

Can someone please look to this bug?