Using iCal 5.0.3 in Lion. Maybe a week or so ago I started getting this error when trying to delete birthday entries:
Only the calendar administrator and any delegates with permission can make changes to read-only calendars. To make changes to the calendar, contact the calendar administrator.
This is a home computer and I'm logged in with an Admin account -- the only account we ever log in with. I'm not aware of any software changes unless something happened with an Apple update. Any ideas?
Josh K has chosen the best answer to his/her question.
Click here to view the answer that was selected.

Moderator
CNET Staff
Samsung Staff
Dell Staff