I upgraded my Yahoo to the new beta and went through the instructions for iCal syncing: http://www.glenscott.co.uk/2008/10/22/synchronize-ical-with-yahoo-calendar/ I'm pretty sure I set everything up correctly. If I add something to the Yahoo Calendar it does sync and show up on iCal, but it doesn't work the other way around. The article above does say it should work both ways. Does anybody know what I should try to get it to work? Thanks.