Hi, I noticed a problem with events that recur every second month. I created an event that takes place on May 31st 2012, repeats yearly and has an interval of 2. phpicalender shows it correctly in May and July but not in September. Instead it shows it in October and after that every second month. This happens in monthly view as well as yearly view and in daily view.
I tried two different ical files, one of them was created using Apple iCalendar, neither of them worked.
Apple made .ics
Ah, yes, I tried php versions 5.2.9 and 5.1.6.