blocked packages in gentoo

host# emerge -vp world

These are the packages that would be merged, in order:

Calculating world dependencies... done!
[blocks B ] <=x11-base/xorg-x11-6.9 (is blocking x11-proto/kbproto-1.0.2)
[blocks B ] <=x11-base/xorg-x11-6.9 (is blocking x11-misc/util-macros-1.0.2)
[blocks B ] <=x11-base/xorg-x11-6.9 (is blocking x11-libs/libX11-1.0.1-r1)
[blocks B ] <=x11-base/xorg-x11-6.9 (is blocking x11-proto/xextproto-7.0.2)

...и так около 80 блокировок...

[blocks B ] <=x11-base/xorg-x11-6.9 (is blocking x11-drivers/xf86-video-via-0.1.33.2)
[blocks B ] <=x11-base/xorg-x11-6.9 (is blocking x11-drivers/xf86-video-nv-1.0.2.0)
[blocks B ] sys-apps/pam-login (is blocking sys-apps/shadow-4.0.15-r2)
[ebuild U ] sys-apps/man-pages-2.33 [2.24] USE="nls" 1,749 kB
[ebuild U ] net-dialup/rp-pppoe-3.8 [3.5-r11] USE="X" 207 kB
[ebuild U ] sys-libs/cracklib-2.8.9 [2.8.5-r1] USE="nls python" 562 kB

дальше все путем.

Total size of downloads: 544,949 kB
host# emerge -v world
Calculating world dependencies... done!

!!! Error: the <=x11-base/xorg-x11-6.9 package conflicts with another package;
!!! the two packages cannot be installed on the same system together.
!!! Please use 'emerge --pretend' to determine blockers.

вопрос: как разрулить ситуацию... или gentoo слегка тупит ?
спасибо.