> I installed RH7.2 on a virtual machine running on top
> of a "real" RH7.2 machine. (I need a plain, generic
> machine available to reference and take screen shots from.)

I guess my question is why use a vm to take screen shots?

Why not create a second login account and leave its gnome as all defaults.  

Then if you need a screenshot open up another instance of X and login is 
that account and take your screenshots.  

-Derek