http://www.pcthreat.com/parasitebyid-35002en.html
If your home page is changed to search.nation.com, you most definitely have Nation Toolbar installed. It is a browser extension that is classified as a potentially unwanted program, because it can expose you to potentially harmful third party content. You are not advised to use the search engine provided by Nation Toolbar, because you might end up in a corrupted website that distributes malware. That is not to say that it is a dangerous computer threat, but it is for the best to remove Nation Toolbar from your system, in order to prevent any potential security risks.
Other search terms: how to remove Nation Toolbar, delete Nation Toolbar, uninstall Nation Toolbar, change Nation Toolbar, get rid of Nation Toolbar, what is Nation Toolbar, pop-ups, adware, Nation Toolbar hijacker, browser settings
