On one of my machines I modified an event I invited 30+ people to, and the event is now over. I didn't intend to modify it, but iCal insists that if I close the window it will send changes to everyone. This is persistent even after I quit or restart. Basically it [smartly] remembers that I made a modification. I really want to just leave it as it is and cancel changes. Beyond wiping some component of the computer, how can I get this closed without emailing everyone (would be very confusing). Thanks!