n.g.i.n.x.

About a week ago I tried to go to my home page, and got a blank page with the message, "Welcome to n.g.i.n.x." at the top in relatively small letters. The page gave no access to the internet, and no scroller. I have since been told that this is called "Engine X." Can anyone explain it to me in "plain language?" Is it some sort of malware? I have found a way around it, but I would prefer to eliminate it. What is it? What should I do?