I have Windows XP on my computer and each family member has their own user name to sign into. Each person uses Internet Explorer. On all of the other computer user names, no one is able to sign into websites, including their Comcast email, Yahoo email, Hotmail email, or Facebook, but all of these sites will let me log in fine on this user name. IE will load all other websites fine, like Google or Myspace and the Comcast homepage shows up fine.. Just when you click on the link to login it always gives an error message like "Internet Explorer cannot display the page." No one had any problems with signing into things before.. This problem just started a few weeks ago. I know it's not a problem with the websites because they work fine for me and on other computers.. Someone please help me! I have no clue what's going on and I will really appreciate any help!