why does Catalyst Control Center keep poppn up sayn something like "Your Host is not responding or working correctly". & then it goes to Security Essentials. clean computer, i do clean & all is updated but in my "Malware" something detected, i tried to add anti virus but it won't allow me to get that far, i don't understand any of this, do i need anti virus added to my computer, has my Malware detecting & not allowing me to correct problem, i did try to add but that catalyst & security essentials prevents me frm following thru. Please help me