unable to accept or decline invitation
After upgrading to OS X Mavericks, I receive several invitations from MS Outlook users. These are coming via email as an attachement. When I click on the attachemnt I see the event posting in iCal however I am unable to accept or decline the event. There is a question mark appearing, but when I try to select there is no effect (I'm assuming this is where one is suppose to select a response - based on the on-line help).
Faulty installation? Feature not working