> Also, I don't think broken English is the barrier you make it out to be. I think it varies widely from "hardly an issue" through to "almost insurmountable barrier". For instance, Mike has on several occasions taken almost exactly the opposite meaning from my posts that I intended. This is sometimes my fault for using language jargon (as it were) which is likely to really be well understood only via very competent English speaker. But on some past occasions its come as quite a surprise. I don't think this is an expecially critical point but I do suspect we may get it wrong often enough to be a little more careful than we collectively are. Cleaning bathrooms and the like is all good fun but a few magic sine waves and filters thrown into the same post (as Wouter did) is probably a good idea. I have only one bathroom here (but two WCs) so I'm immune from that particular offer :-) Russell -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.