Windows 7: IE9 "Remember Password" Feature

I have a PC here at work running Windows 7/IE9 and currently the computer is set to "remember" the password for a specific site. Because of the way this feature works with this site she is unable to log out. The moment she does she is immediately logged right back in. Her browser currently has rights limited to where she can not see the "General" tab and several other features.

I am an administrator and when I log in I can see and edit all these features but that does her no good because the settings are on her account. I've set her account up to have administrative privelages as well as I've run IE9 as administrator and the features are still disabled.

I'm guessing it's something located in local policies somewhere but I can't find it. Mainly I just need to remove the "remember password" entirely, but I think I need admin rights to her browser and so I guess that's my question.

Her account is a domain account. I have domain admin rights as well as local admin rights. So If I can figure out where the settings are I can make the changes.

Thanks.