i was on my lap top yesterday, surfacing the web. the i had what a thik was cookie come up. it read your computer is locked and to unlock it will cots you onehundred pounds. this was supposed to be produced by the police to say that you are or have being going on improper sites. if you do get one of these on your screen, restart pc, go into safe settings and do a system restore and all will be well. kind reguards sidwho