norton blocking quicktime

iv been running norton antivirus 2006 for a few weeks now, loving it. just this morning, while surfing quicktime/trailers, norton popped up and said norton was a virus and is now blocking all quicktime content.

every trailer i tray to watch now comes up with a question mark, and i cant find any setting to allow quicktime to run. any help please?

Update windows to service pak 2, Actually use the Built in firewall ffs that's what its there for! Ive been using it for the past 3 months and my pc is running fine ive not had a virus on it since I was using norton 3 months ago befor I updated to service pak 2