Hi, I have been having probs for a while whith a bogus site saying Its from Microsoft and that I have a security problem and they want to charge me $49.00 to fix it. I saw it was a spam site and had to restore my PC a couple of times. Well yesterday it did it again, I went to restore and now my PC will do nothing, even F8 does nothing and all I have is a small flashing cursor an a Black screen when I power on. I use MS Essentials and it has seemed to work for a while.HELP please.