[fritz_t_coyote]

Ok: the 'remember my id/pword' is a browser function.

What is happening is your browser thinks you have 2 different User Ids for the site, and as soon as you start to type one id it is able to tell which ID you want to use, and provide the ID and Password.

How to fix it:
If you are using firefox:
on the top toolbar click on 'Tools/Options'

Select the Security Tab
click on 'show passwords'.

Scroll down that list and you will probably find some duplicate sites with blank passwords.... delete them and you should be good.

IF you are using IE:

Arrogant Geekie Answer: Install Firefox.

Less arrogant Geekie answer:
Right Click on the UserID on a website login screen. I think IE will show you all the IDs is knows for that site. I think you can delete the ones you don't want (the one that doesn't start with a 'c').