I have, in iCal two accounts: one local, one synced with my Google account. In the last 3 weeks or so, the alarms on the synced account have stopped working -- that is, I'll create an event, set the alarm, and click "done," and when I click on the event immediately after, my alarm settings have disappeared. This also happens when I add an alarm to existing event on this account. The alarms on my local account appear to be working fine.
I am running 10.6.8 on a 15" MacBook Pro.
Has anyone else had any problems like this? Any ideas as to how I could about fixing it?