I'm using Chrome on windows 7 and on nearly every site I visit, I see words underlined in blue text/green text that link to advertisements. I've read that certain extensions in Chrome can cause this issue, but I do not have any enabled. I am also seeing advertisements open in new tabs when I browse, which began at the same time I started seeing the advertisement links. I ran a scan in Microsoft Security Essentials but did not get any results. Any help to resolve this problem is appreciated.