This FAQ should be required reading for anyone posting to forums online:

How to ask questions the smart way

This part is esp important:

Quote - Never assume you are entitled to an answer. You are not; you aren't, after all, paying for the service. You will earn an answer, if you earn it, by asking a substantial, interesting, and thought-provoking question — one that implicitly contributes to the experience of the community rather than merely passively demanding knowledge from others.