I assume user error is referring to what I may have or not have done. So for the record if you have a 1st gen iPhone that's been updated with 2.0, go to calendar on the home screen, hit the + sign to add an event, after enteering what event info you might want, go to calender after re-accurance, click into the listing and color coding dots on a drop down menu. After selections like anniversary, birthday, holiday, see the word vacation. its mis-spelled on my phone, let me know if it's mis-spelled on yours.