There is no error message.
If I try to log-in as my fellow admin (after logging out myself) I enter the details as they 'should' be and it just takes me back to the main page as a guest. . . not logged in.
After looking at his profile the 'hidden' characters of his password have been increased and I can assure you no one did this. . .
If I try to change his password and click submit and check again, the password has not been changed or updated. . . if this is happening to him then I suspect this is the problem for all those having problems. . .
I have also pasted this to tech support and not even got back a mail response. . .
Any ideas????
