I suspect that lots of you have already heard about this new 'Slapper' virus that busily turning our Linux / Apache machines into some kind of evil beowulf. (http://news.bbc.co.uk/1/hi/technology/2263693.stm) This idea of 'grid computing' seems to be gaining ground quite rapidly though. I have read a few articles on it and now find myself with a few P166's and an old hub to play with. The idea of building a beowulf has appealed for quite a while. What appeals even more, is getting 166's to use some kind of 'slapper' style integration with the main network and harness all the idle cycles on the under-used new gigahertz, now entry level, machines that occupy corners in the school. Anyone tried this yet? Does this idea make sense? It should be practical, I would have thought. I will keep people posted, if I get it to work. Maybe some people know of a few pitfalls though, before I start. Regards to all, Bruce Miller.