NAV 2012 10.1.1.3 Getting Norton task notifications popping up despite this having been set to off

NAV 2012 (19.1.1.3) on XP pro SP3.

 

In settings/general I have set Norton Task notification to off. Despite that I still get the (to me annoying) notifations popping up in the systray area every time a quick scan is started or finishes.

 

Am I missing some other setting or is this a bug?