I am really annoyed how iCal uses Mail.app to try to send e-mail notifications. It always pops up Mail.app and I do not want it to at all. How can I make iCal use Sparrow instead to send e-mail notifications/reminders?
I tried this: http://gidogeek.com/post/6037637963/ical-sparrow
But that didn't work for some reason.