[Sean2]

its always good practice to follow the below given steps.

open internet explorer browser
click on tools
click on internet options
delete all cookies, temporary internet files, history.

after this its very important to check for the setup for the content option and click on autocomplete. See what you have

under the heading USE AUTOCOMPLETE FOR:

see only the web address is checked

if you have checked mark for the forms and user names and password please uncheck them and click apply and ok to come out. This will give less scope for hackers to hack your system. Also make sure you have firewall on at all times unless and otherwise u need it to be off.