None

simply a nuisance that confuses things. With my more technical hat on they are something which is difficult/impossible to implement correctly because there is no concise explanation anywhere of what they're supposed to do. ... and the same sort of problems apply to INBOX! [moan, moan, moan, mumble, mumble] -- Chris Green (chris@areti.co.uk) "Never ascribe to malice that which can be explained by incompetence."