new user group getting wrong theme

[ATVTorture]

Let me try to clairfy. I have a default style set in style and Language settings. Underneath that, I have selected "No" for allow users to change the default style. So, they never get a drop-down box for different styles at the bottom of the screen.

However, I just created a new user group. The ones in that user group are getting the NON-default style and I can't figure out hwo that could be.

Any ideas?

Thanks!