Exceed Login

I have a number of systems running 11i and 10.2. I need to log in using Exceed V8.0. On all systems, except one, I get the HP CDE screen asking for USER name and password. Upon entering the information, the screen goes away and comes back with the same HP CDE screen, asking again. I have one system that I can successfully log into and contine with the normal screen where I can open a terminal. I have compared all the files I know of concerning log in and X11. I'm stumped. Any suggestions would be greatly appreciated. OT