I have the Samsung i760 with WM 6.0 and can't figure out how to change a default phone number for a contact. I have a home number and cell number. I open the contact, highlight the number I want to set as default, but when I go to the menu, the only option is to add it to speed dial.

I've searched this board and Google and every answer I find gives me the same instructions that I've tried. However, that menu option just doesn't exist. HELP!!!