I'm generating iCalendar events using PHP. They pass the validation checkers but won't add to Google Calendar or iCalendar. Help - what am I doing wrong? When I attempt to import I get "iCal can't read this calendar file. No events have been added to your calendar. Google just appears to import the calendar but it's not there. BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Foobar Name//NONSGML Foobar Name//EN BEGIN:VEVENT UID:20111129T103025-268Z@foobar DTSTAMP:20111210T103025Z DTSTART:20111210T210000Z DTEND:20111210T230000Z TRANSP: TRANSPARENT SUMMARY:Foobar - Book Fair - text DESCRIPTION: Foobar: Book Fair - text END:VEVENT END:VCALENDAR Should I addslashes or not write colons in my summary or description text? Here are the headers I'm writing out... header("Content-Type: text/Calendar"); header('Content-Disposition: inline; filename="calendar.ics"'); echo "BEGIN:VCALENDAR</br>"; echo "VERSION:2.0</br>"; echo "PRODID:-//$orgname//NONSGML $orgname//EN</br>"; echo "METHOD:REQUEST</p>"; // required by Outlook The file I'm generating has the extension .php (not .ics). Thanks for any insight into what I might be doing wrong. rihallix (PHP5.2 / Windows)