These instructions will show you how to use iCal with OS X 10.5.x or later to connect to My GaTech using the CalDAV protocol.
Configuring iCal (10.7 Lion and Up)
1. From the iCal menu choose Preferences.
2. Go to the Accounts tab and click the + sign to add a new account.
3. Please be sure to choose Manual Configuration for the following steps.
4. Enter the following information: Account Type:CalDAV Username:GT account name Password:GT password Server Address: mail.gatech.edu
5. Click Create.
A Note about OS X 10.7 Lion and CalDav: In MyGatech (http://my.gatech.edu) there is a setting under Preferences -> Calendar for "Enable delegation for Apple iCal CalDav client". For OS X 10.7 Lion Apple has changed the delegation capabilities and you might discover that it is better to leave this option disabled.
Your calendars will now appear in the left-hand column of the iCal window in a section named My GaTech.