EDIT
PREFERENCES
Privacy & Security
Passwords
Manage Stored Passwords

Then click and delete all of the stored passwords for the chipboard.com, and for any other WebBBS sites.

Next time you login to TCB it will ask "Remember Password for this site" (or something like that) click Never For This Site

The cookie from the BB will remember you, the Netscape password storage will keep storing it as a new password, over and over.

After I changed that, I've never had a problem again. It took a couple of weeks to figure it out.

I have the same problem with Netscape remembering the shipping fee in the Paypal form. It wants to put in the same number, no matter what it's supposed to be. One time fix, "never remember passwords for this form" (or site?)

Most of the time the password manager is just fine and helpful, sometimes for forms, it's a PITA.