It's a fact that people don't read the help file. They start the program up, input there data and make random adjustments until something works out. Yet people will sit on this website and read thread after thread of nonsense and post what they believe to be correct without any research.

An excellent job has been done by Dave posting the cliff note version of the help menu.

Don't knock someone because they are making it easier for people to notice and learn from their mistakes.