My laptop computer (not the computer that i am on now, i am on my home computer right now) says its infected. My desktop background is blue and says WARNING YOUR IN DANGER. and it says ive been infected with spyware. This thing called System Tools keeps coming up and it wont let me open anything! I have Norton Security Suite, but i cant open it to do a scan. Please help me remove this. I have an Acer aspire one and am using windows xp