nothing works for authorizing my ADE, nothing works for authorizing my ADE on my Mac airbook; used to work fine

Tried installing noew ADE 3.0;  tried command-shift-D  but don't get a window asking if I want to deauthorize. Help window resets to allow authorization.

Used to work fine for past year. 

Changed email to this one I'm logged in with; nothing works.  keep getting the bad key error message.  Why is there no clean install re-do information?

This really sucks. Jim