I allways get this messsage when I want to update my system.
[blocks B ] <media-video/ati-drivers-8.8.25-r3 (is blocking
x11-base/opengl-update-2.1.1-r1)

I ussually do emerge -Duv world. But now it doesn't start compiling because
there is a Blocked ebuild. What can I do to unblock it?

Greetz