Last couple days I saw many iexplore.exe opened in Task Manager-> Processes, but there is none visible IE on screen. Then today, there is a session when I am on Firefox and it's so laggy while Task manager shows low CPU and RAM usage (my PC is old, however, when it's lagging, it's usually due to program using RAM/ CPU. Not this case). Then using Firefox further, I was redirected to http://searchportal.information.com/?a_id=12349&domainname=referer_detect twice. One other time, when use Google search tool, I got redirected to a page said somthing like: "We detect high traffic from your location", then there is a capcha to be typed in (Even when I hit back and typed anything search word, this page still turned up). I didn't type anything in. I just turned off Firefox. I am on Windows 7 SP1 Home edition.