failure of instant messenger scan......Failed cannot select

Hey peeps I installed nv2009 and I was going through the setings and on the internet tab there is a service for instant messenger scan, when I go to configure this it shows a list of instant messengers and I got Yahoo and AOL and the check boxes are all greyed out which makes it unselectable. I have emailed Norton about this problem i’m having and they cannot seem to help me out. Is there anyone out there that is having the same problem. I uninstalled and reinstalled and nadda i’m runnin win XP home edition SP3.