It sounds like you do have a virus on there, especially if sites keep popping up. You may need an anti-virus software to get rid of what is already there, but you may want to get Net Nanny to prevent it from happening again. Net Nanny is giving away free licenses to the first 2000 people who like their page on Facebook. After you like their page, you have to send them an email so you can get the license. Here's the link for their Facebook page: http://www.facebook.com/CWNetNanny?sk=app_197936773558886.