title: Valarm not working in icalendar when it has multiple events
body: <p>Am using following Icalendar code to set multiple events in a single ics file... But when i tested it with outlook 2007, the remainder sets to none. </p>
  
  <pre><code>    BEGIN:VCALENDAR
      PRODID:- //Microsoft Corporation//Outlook 9.0 MIMEDIR//EN
      VERSION:2.0
      CALSCALE:GREGORIAN
      METHOD:PUBLISH
      BEGIN:VEVENT
      DTSTART:20120130T121000Z
      DTEND:20120130T131000Z
      UID:1620111121T075424707955
      DTSTAMP:20111121T075424
      DESCRIPTION;ENCODING=QUOTED-PRINTABLE:some descritption for event
      TRANSP:OPAQUE
      SUMMARY:Summary
      PRIORITY:5
      CLASS:PUBLIC
      BEGIN:VALARM
      DESCRIPTION:Some description for alarm
      TRIGGER;RELATED=START:-PT30H
      ACTION:DISPLAY
      END:VALARM
      END:VEVENT
      BEGIN:VEVENT
      DTSTART:20120201T233800Z
      DTEND:20120202T003800Z
      UID:1620111121T075424707955
      DTSTAMP:20111121T075424
      DESCRIPTION;ENCODING=QUOTED-PRINTABLE:some descritption for event
      TRANSP:OPAQUE
      SUMMARY: Summary
      PRIORITY:5
      CLASS:PUBLIC
      BEGIN:VALARM
      DESCRIPTION:Some description for alarm
      TRIGGER;RELATED=START:-PT30H
      ACTION:DISPLAY
      END:VALARM
      END:VEVENT
      END:VCALENDAR
  </code></pre>
  
  <p>When I use same format with only one event it is working fine... Help me in resolving this issue.</p>