Genuine requests for help ought to be treated with due consideration, even if similar requests have been posted several times before. Nothing is more off putting than a response of the type

"Can't you be bothered to use the search facility you idle sod. This question has been asked eleventeen times before"

The person making the request may be new to computers or be unfamiliar with some of the technical aspects. It's always a good idea to assume that.

My example above may be a bit of an exaggeration but I have been on the receiving end of responses that were close to that. Artful Codger's post of 04 Nov 10 - 08:09 AM tends that way. Just being a little less brusque is likely to be more effective "Have you tried the search? There has been some discussion of this is previous threads". It may be that the person making the request has in fact used the search but was unable to find the information they wanted as is the case in this thread.