10.7.5 Address Book, Groups greyed out

In my "Groups" page is the usual groups that I placed there several canges ago. Now, in addition to the iCloud there are greyed out names below ALL CONTACTS <att.net> and just below that, indented, is <All att.net>.. there are FOUR of them all the same.

There is no reaction when I select either the main att.net or the sub All att.net.

I do wish there was some way to stop the Apple doodlers from messing constantly with an operating system I chose after 20 years of Dos and Windows.

Appreciate suggestion

Ed