logon and logoff problems at Windows Mobile using ITS 7.0

Hi experts!

I'm having some issues regarding the logon procedures at ITS Mobile. I've made some configurations the way users should logon and no success. Using the basic authentication we can logon, but it's a problema at WM5, because the Internet Explorer can't close without access the settings menu.

Without basic authentication, the screen at Windows Mobile hangs, trying to load a web dynpro and I can't send any information on that:

http://img513.imageshack.us/img513/9955/errowz7.jpg

Does anyone know what it could be?

Thanks in advance,

Ken.