5.0.2 and Norton AntiVirus

Upgrading to 5.0.2 from 5.0.1 has resulted in frequent (about every minute) warnings from Norton Antivirus about protecting me from a worm.

I am given the option from Norton to "Permit" access, but this preference does not stick. (This might be more of a Norton problem, but I thought I would mention it here).

Going into Norton worm preferences, Idea is listed as having all permissions, so I am not sure why I'm being hit with modal security alerts.

Any ideas on how to remedy the situation? Thanks.