.ics file error : "iCal can’t read this calendar file."
I would like to add my flight itinery to my iCal. Downloaded the .ics file from the BA website. When double clicking on it and dragging it to iCal this message pops up: "iCal can’t read this calendar file. No events have been added to your iCal calendar."
file details:
BEGIN:VCALENDAR
PRODID:-//Ben Fortuna//iCal4j 1.0//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
I also tried converting it to .vcs. Then iCal asks which calender I would like to add it to but still comes up with above message.
Any ideas?
Thanks.
MacBook Air, Mac OS X (10.7)