Hi, I am writing a calendar application, and want to use the GUI of iCal to present as a the main calendar to the user. This means that I have to capture the events that a user adds via the GUI, and then perform the needed operations in my application. I have never used applescript before, but I noticed that adding events to a calendar is very easy. Listening to changes apparently isn't, can you guys give me a hint on how to do it? greetz Ben.