"Welcome to nginx!" instead of Google homepage.

I typed google.co.uk in the address bar the other day and "Welcome to nginx!" displayed in black text on a blank white page. What on Earth?

nginx is web server software, it could be that google were having some problems and you hit one of thier empty servers..

make sure you do a full virus and spyware check, if it all comes clear, I wouldn't worry about it, but watch for it happening again...