About Blank is a generic page that comes up if your Internet connection is not active. This could be because you tried to connect too soon before all your startup programs have loaded or because your Internet connection is not yet complete or has been disconnected. It could also come up if your Security Settings block the web site. It is not a program but is more of an error message. When you see that page, close Internet Explorer and check your connection. When it shows you are connected to your Internet Provider--you might have to reinitiate your connection, restart your browser.

Then I would suspect something else is blocking access to the site. It could be high security settings in Internet Explorer or in your security/antivirus program or even in your Firewall or Parental Block settings. It can come up if you mistyped a web address or your search engine tried to open a dead link. You should even check the screens & globe (network indicator) at the bottom of the page to make sure your connection is still active. I know my cable provider sometimes drop the connection in the middle of browsing.