[robg adds: I thought we'd covered this here before, but I couldn't find it (searching on ical is hard to do). It also brings up an iCal annoyance of mine -- once you start a drag operation (copy or not), you can't cancel it. So if you started dragging the wrong event, for instance, you have to complete the drag first, then use Command-Z to undo it, then re-drag the event you meant to grab in the first place. How about Escape to cancel, as is possible in the Finder?]

