password not expire unavailable

Hi,

I've checked option "must change password every xxx days" to implemant the option "password must be changed at next login. This work fine , but I hace som account 1 Don't want to change password because they are used in Scripting way. So I want to check option "password never expire" in the password indows but this option is not usable. The field in greyed and I can't ckick on the checkbox.

I'm in version 8.0.0.2. How can I solve it ?

Regards