Auto-protect blocked security risk W32.IRCBot.Gen - How do I stop these annoying pop ups?

Recently, my computer started displaying the following Norton Internet Security pop up near the system tray:

 

Auto-Protect blocked security risk W32.IRCBot.Gen. Your computer is secure.”

 

I do not know what suddenly caused these alerts to appear, or how to turn them off, but they pop up approximately every 5 minutes and are becoming quite annoying. Any suggestions? I am using Norton Internet Security 2010.

 

Thanks!

Message Edited by ddanzer on 11-22-2009 01:52 PM