How can I stop my user name appearing when I start typing in facebook?

[cal]

hi
When I start typing my user name in facebook or other applications like that, the computer automatically shows the balance of my user name or some other person's one, and starts auto filling in.
How can I stop this? pls help
Thks
Hi
thks but this is through internet explorer 6.0

[ParPar]

i have a solution for Mozilla firefox but it will also delete all of the user name and passwords that u have saved for other websites
u can open a firefox page-------->tools------->clear private data--------> then u can check whatever u want to be deleted!! there will be no sign of anything

[Amazingheat662]

You have to go to Tools and then delete cookied and delete history