Just to add to Doug's post...
I'm on the same system - syncing between my iPhone (4) and iCal on my Mac via MobileMe. Never had any problems when I was phone iPhone 3, and not sure when I started getting this problem with my iPhone 4 (may have been when upgrading to new MobileMe calendar), but I am not getting pop-up alerts which I have set up in iCal on my iPhone. They do pop up on my Mac desktop, but not on the iPhone. The thing is, when I go into Calendar on my iPhone, all the events that I created in iCal are there to be seen in Calendar on the iPhone, and when I select one of those events, all the correct information (including the alerts) are there to be seen.
So the information all appears to be correctly in the iPhone ... and hence I would not have thought it could be a syncing issue.
But come the time for that alert to pop-up on my phone and it just doesn't do it.
I have checked other issues mentioned, like the time zone.
... I've just applied the fix suggested by diana1953 (but in my case applying MobileMe where she has referred to Google Calendar / Gmail) and it seems to have worked on the test event I set. Thanks.
Glad to see this thread - I've had this issue for weeks. I have the same setup as NickfromCapetown, so I'm trying Diana1953's solution (subbing MobileMe for Gmail). Hope it works.
Tried Diana1953's steps and got an odd result: when the phone is locked, the alarm goes off as it should, but not when the phone is unlocked. Will try rebooting and test it again. Any other suggestions?
Hi, I've got the same issue with my iPhone 4. I tried Diana1953's advice but didn't work. I also tried to activate/disactivate time zone support, but didn't make any difference.
I have created all my calendar events from my iPhone, including birthdays taken from my contact list. Alerts simply don't go off, although all the events look correct in the calendar.
Any idea of what might be going on?
iPhone Calendar Alerts not Working
