Virus risk of MT?

Quote: First MT did not close. Also no other pages on or to make. Then four warning/dangerous page. Firefox inactive and then away. No loading of a browser more possible for about 4 hours. Now just a complete scanning is done. PC is very slow!! Some programs work only after several attempts, but sometimes then crash again This problem had my wife yesterday, when I was not home… With my IE6, on which I’ve never had such problems, even though I’ve been here for several hours every day… Has anyone ever had similar problems??