"Home Page" Missing in New Card in Address Book 3.1.2 - and can't add field

Question

i have been using Address Book for several years and 292 cards created. many of them have "home page" URL's that are accessible in Safari. brilliant. nice work Apple.
however, i have just tried to make a NEW CARD and find that no "home page" field is being offered for population. puzzling.
if i go to Card > Add Field > the dropdown presents all the possible default fields available. those that are currently in the card are greyed out, those that may be added are black and selectable.
Home Page is greyed out and unselectable despite it not being currently available in the new card i have just created and attempted to populate.
what the heck is going on here?? it has obviosly worked correctly in the past, i have at least 90 cards with URLs in them.

Answer 1

Is it possible that you've altered the template so that home page is a default? (I.e., it's already on the card) That would cause it to gray out. I was just having a similar problem in trying to Add Field... and finally, the penny dropped that the field was already there, just not where I was looking.
I apologize if this seems obvious or dumb, but I'm reasonably bright and yet it wasn't obvious enough to keep me from hunting around for five minutes with furrowed brow.
Best,