Rex,

>In the builder for a dataenvironment, I select new DE, enter a name and try to get the baseclass for the new DE. The baseclass will not "stick" in the builder dialog form.>

Are you using the ellipses button to select the name of an existing DE class? Specifically, what is happening when you say that the baseclass is not sticking?

As an aside, if you haven't already done so, I recommend downloading the Service Pack from our web site to upgrade to version 4.00a

Regards,