What causes strike alerts to go off falsely, mine rarely goes off, but just now, its gone off twice, saying a strike within 6 miles occurred, but its beautifully sunny. Its not my PC, the alert is about 7 metres at least away from me and its not done that before now.... Daz ED: Oh and what's the best detector thats cheap around atm? ie. less than £100 really. ED2: what about this? http://www.ukweathershop.co.uk/acatalog/skyscan_sub.html How does this compare to strike alert?