Emerge -u Error

[ilusiv]

Hey I'm trying to run emerge -u to upgrade the packages i've merged but when I do I get the following error

illusive ~ # emerge -up world

These are the packages that I would merge, in order:

Calculating world dependencies ...done!
[blocks B ] <x11-base/xorg-x11-6.8.0-r4 (is blocking x11-base/opengl-update-2.1.1-r1)
[ebuild U ] sys-apps/man-pages-2.01 [1.67]
[ebuild U ] sys-apps/grep-2.5.1-r7 [2.5.1-r6]
[ebuild U ] dev-lang/tcl-8.4.6-r1 [8.4.6]


As you can see xorg-x11-6.8.0-r4 seems to be causing an issue. I can't figure out what it is. Any ideas?

[ilusiv]

Bump....

Any ideas?