I just got this on my Laptop earlier tonight. The bastard thing locked the whole Laptop. I tried accessing the desktop but it kept showing that fucking screen shot of some page where it was asking me to pay a fine of £100 within 72 hours. There was a small install box behind the page on display. I don't know what it was but it had a double option like to install or decline. I couldn't see what the box was saying as the page on display kept coming back within a second or two of trying to be rid of it. So I had to do a full destructive system recovery once again (if you remember the last thread I had about a HDD problem I had). That's it. I definitely need to buy an anti-virus program. Kasperski or whatever (NOT Norton's Anti-Virus though). Anyone ever had this virus or trojan or what ever it's called. Sons of motherless **** stain faced bastards is all they are. - those responsible for this virus. BUNCHA HOOERS! 
