because the brightness and contrast settings are so closely related, you may find in some cases that setting the proper white level disturbs your setting of the black level (brightness control). extra cheese: well, everyone likes extra cheese. this is a can of worms i do not want, but may be forced into. just seemed silly not to go! this course can also be delivered in-house. i have to do this for no pay, at least right now. only when i stop and really think about it i recognize i made steps in the direction i wanted to. 