Thanks to Radek Biernacki for spotting this: AMI_Version is defined as Type String, but we require that it accept values of "5.1" or greater. "Greater" is meaningless if this is a string, so this is unenforceable. I would recommend changing this to Float, assuming that we will not be defining sub-decimal version numbers (5.1.2, for example). Comments? Objections? This will be raised at tomorrow's Open Forum teleconference. - MM