iCal will not let me Add Attendees

[thedoor1]

When adding a new event, I try to add email address to send to attendees. I type in an email address and I get a <bonK> sound and the attendee disappears.


I have a "me" card set up in contacts.

Any ideas?

I tried deleting the plist file, but it did not work.

 

[spaceballl]

What kind of account is it? I've tried w/ both caldav and exchange and it works for me...