first of all, what is beryl ?
Beryl is a combined window manager and composite manager written in C using OpenGL to provide acceleration. It is designed to be highly flexible, extensible, and portable, all the while keeping in mind that the users know how they want their desktops to act better than we do. With Beryl the rather esoteric concept of the computer desktop is brought down to a more human level, allowing for a more native and intuitive understanding of your workspace. To learn more about Beryl and its features visit our Feature Spotlight.
link to more info > http://www.beryl-project.org/
how do I enable beryl in FCR6 ?
as root do this
[root@localhost ~]# yum install beryl
ok, it's installed, now how do i see beryl in action ?
click on Applications, System tools, Beryl Manager.
How do i know it's running ?
your dekstop will take on all sorts of new cool features (see screenshots)