i am using a compaq6515b laptop hich comes pre installed with HP PROTECT SECURITY SUITE Under that there is a software called credential manager.it has a single sign on option whenever i log on to a website remembers my password and stores it and next time automatically sign's in for me when i log on to the webpage.. off lately it is not working..neither it is signing in nor taking any new credentials i reinstalled the entire software still it wasnt working.. cleaned the registry defraged junk files removed not working yet there was a small button that used to come on the top next to minimize button..that is not coming too.. plz can any1 tell me how can i activate this Single sign on feature.. UNDER SETTINGS its already checked as "enable single sign on"