Default [Q] lost calendar functionality after upgrading to 4.0.4.

Hello. I have just upgraded from 2.3.3 to 4.0.4 on my Samsung GT-I9000. Before upgrade, in the calendar, I could press and hold an appointment and than move it to another time to quickly reschedule. Now when I press and hold a popup comes up offering me to enter new event. I couldn't find anyuthing in the settings. Anyone knows how to activate this?