Yes I have heard of the Greenbank theory,Von neumann machines,the Moigne downs sitings,Adamski,the Hills,Von Daniken,the Piri Reis map,The alleged crash of a ufo at Tunguska in Russia in 1911,Warminster and all the other theories that surround this subject,so don't try and presume the depth of my knowledge by the content of one post,pal!-you're way off the mark!![Stick out tongue [:P]](/emoticons/emotion-4.gif)