I use Explorer as my browser. When I log in on a secure site (example Bank account) it brings up my account but when I proceed to the next page it will ask for my login and password again. It does this on all my sites that require a login and a password. Every so often I get error message Error: Status code is 503. I have had it looked at but without results. It has been suggested I use a different browser, or have the system dumped and then reinstall everything (something I don't want to do)