Paranoia time

Did you know that your IP address can pinpoint the exact geographical location of your computer, using GPS technology which I certainly don't remember ordering or installing? It's true - try it. I did, and as a result I now know that I am, in fact, either crawling around the Yorkshire Dales or perched on the railings of Holborn Viaduct in London EC. Or I may be somewhere in Southampton. They're closing in on me ...