ICal Calendar Get Info Window not appearing

Question

MB Pro Lion 10.7.2
I'm trying to change the color of a calendar in iCal. The calendar is syncing to an Exchange server.
I click the Calendars button in the upper left corner of the iCal window, then right click on the calendar. From the contextual menu, I choose "Get Info." The command blinks in response, but no Info window appears. The Get Info window appears for other calendars (e.g., Google Calendar syncing via CalDAV). The Get Info window appears for individual events on this calendar, but not for the calendar as a whole.
Since I'm only trying to change the color as it's displayed in iCal on my Mac, I don't see why this calendar refuses to show its Info window.
I've tried unchecking and rechecking the calendar from the list of visible calendars. I've tried unchecking all calendars but this one.
I've tried removing the .plist files for iCal from my ~/Library/Preferences/ folder to no avail.
I've tried removing the account from iCal and re-adding it, also to no avail.
Any ideas?

Answer 1

Well done, Ian! Nice solution to changing the colors. I played around with this a bit and found a way to choose the color from the color wheel by changing the code just slightly.
tell application "iCal"
          set color of calendar "Calendar" to choose color default color {0, 0, 0}
end tell
You have to switch views or calendars and then click on an event in the calendar whose color you just changed to see the new color. Which leads to this slightly more automated solution:
property targetCalendar : "Calendar" as string
tell application "iCal"
tell calendar targetCalendar
                         set color to choose color default color {0, 0, 0}
       switch view to month view
       switch view to week view
       switch view to day view
                         show first event
  end tell
end tell
The switch view statements just ensure that the update becomes visible. (I've not been able to see how to get iCal to tell me what the current view is when the script runs so the script can switch back to it)
Still, the Get Info window should still appear when you select it from the context menu.