Yes, someone has already guessed... I fried my Laptop, along with two weeks work on a DoD map and my additions to the new tutorial by Seventh-Monkey. Oh well, maybe that is for the best.. (Back up always and often, who said that?)
Anyway, have a look at the new tutorial:'Rain'
it is a lot of fun, but a bit of an r_speed hog that might not be suited to all mappers. But it does work and that is the main thing. If you have any questions, I am sure that Seventh-Monkey will be more than happy to answer them.