TOPIC: registered users changing id

Dear,

On my website, I use a generic user to log on (no different usernames and password).
So when users are loged on using the generic ID and want to post a message, the "Only registered" boxes name and e-mail are grayed out. Everyone posts a message under the same name.

Is there a way to overrule this setting and allways allow people to use their own name / e-mail?
Changing the "Only registered" setting to "no" does not help.

Thx.

use the search function and you will find an answer!
Cheers!
Daniel