How do I delete some of the auto-remembered usernames. It was convenient to double click on user name and choose my name form the 2 accounts on the computer. However I missed typed my username a few time while in a hurry and now it remembers those. I never clicked the button to remember my info. It seems to automatically remember any username entered when "sign in" is hit. Please help! Thanks

This is a browser feature. If you're using IExplorer, IIRC you just need to press "Delete" when you're over the selection you want to get rid of. In Firefox, you can also simply go to the options to delete stuff like this.