What finally worked was making sure the domain information and e-mail
addresses were correct in both the resource sheet view and in the
checked out Resource Pool, specifying the default network, then
clicking on each resource one-at-a-time in the Resource Sheet view and
publishing them from there! The Gantt view would not do the job.
Thought I might post this just in case it can save somebody else the
couple of hours it took me to sort this out.
Nuts.