Jannie,
Just a thought, but does your browser have a password storage tool of some sort?
When I ask a website to remember my login information, I usually have to set it up on the website AND within my browser.
I get a little popup asking me if I want the browser to remember the information. Once I've done that, then it's fine. (I use Firefox)
Don't know if this is the answer but I hope it helps.
Trinity