[Evolution] minimal vcf for appointment import?

[Andreas Jellinghaus <aj dungeon inka de>]

Hi,

i selected all contacts, saved them in a text file,
and i'm now writing a perl script to create a calendar
file, so i can import everyone's birthday as an appointment.

my script creates this for every person with a birthday set:

BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;VALUE=DATE:19650421
DTEND;VALUE=DATE:19650421
SUMMARY:Someone Geburtstag (* 1965-04-21)
CLASS:PUBLIC
CONTACT:Someone
RRULE:FREQ=YEARLY;INTERVAL=1
END:VEVENT
END:VCALENDAR

the file contains several entries like this, seperated by a single empty
line. but the import "does not work".

maybe someone has a clue what is missing, or how i can debug evolutions
import feature? no message at all...
my evolution is 1.0.5 (debian woody).

best regards, andreas