NetApp FAS270 FAS3020 and FAS3140A DOT ver 7.2.3 McAfee Vscan for NetApp Filers v7.1

I am seeing a lot of the following messages in /etc/messages

ERROR: [vscan.virus.detected:error]: CIFS: Virus Detected - <file path> in share [Share name not available] accessed by client **unknown** (**unknown**) running as user **unknown** is infected. The filer received status message Error 5 ...Continuing and error code [5] from vscan (anti-virus) server **unknown**.

The service account of the Vscan application is in the local admin group of the filer. NetApp has recommended upgrading to DOT 7.3 but I am somewhat hesitant since all of filers are using quotas and usermap.cfgs - have seen a few emails concerning "panic" problems.

Has anyone else seen similar results with their Vscan application on the filers?

Regards,