Thanks for your advice Rolig. I will ask neighbours...as long as it's not the North Koreans On that same note, is there a way for a malicios perosn to send a bomb by selcting our land via the map and "clicking send" or something? oh, and yes, the noise is just a sound like a bird scaring machine so it is a fraction of a second long but annoying - a "pop" but I did see an explosion so asking I shall do. thankies.