George probably does have a point though Jeff. I was always taught that you can't use a form of the word when trying to define the word itself. As such, my explanation using the very terms that were asked about may have only confused someone with reduced background on the subject. If that is the case, i would hope that they would ask for further clarification / help. There are those on Agon that are always willing to lend a hand, no matter how silly or simple someone else thinks it is. As such, it is better to ask for further assistance than to remain completely in the dark on the subject. Hopefully, that's not the case here, but we may never know unless Vman responds. Sean
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