Thank you, G-Force.
But that's not working, either. Administrators cannot send usergroup 10 pm's. I get the "they have chosen not to accept pm's or the administrator ...blah".
Also, as a member of usergroup 10, I cannot access the pm's, but I can see new ones in the user cp. However I can't clikc on "private messages" in the usercp and the $pminfo doesn't show up on the forumhome.

Maybe this just isn't possible.