It's a bit of a forum speciality, that. Not having a go at you Dan but too many posters here do it. It's like they are arguing with their sibling and trying to annoy them as much as they can before their mother shouts at them to stop it (while at the same time trying their best to make a clear implication that their knowledge on the subject is such that your point is utterly worthless and that their more informed opinion should be accepted, without question). Or like they are auditioning for pantomime. (I dare someone to post "oh no it's not.)