I believe that you have Hijacked with Trojan on your PC. If there is a trey icon that looks like a red ball with a white X in it, then this Trojan name is "PSGuard". This application is a Trojan, a program with hidden functionality that may include Adware, Spyware, Malware, hacks and data mining. PSGuard is fake security program that claims to help block viruses, worms and Trojans, but will actually install a host of dangerous files on the user’s PC.Finally there are nonstop popups. I have full details instruction for removal of this Trojan but I can not send you that instruction coz of Answers.Yahoo policy. You wish then you can send me an email with details of problem to get manual solution. Bye.