these are my portage's config files

cat /etc/portage/package.unmask
media-video/nvidia-kernel
app-portage/layman
=x11-libs/libX11-1.0.1
net-irc/xchat-gnome ~x86


Gentoo ~ # cat /etc/portage/package.keywords
=app-office/openoffice-bin-2.0.0
=media-video/lxdvdrip-1.42
=net-p2p/azureus-2.3.0.4
=dev-java/swt-3.0-r2
=dev-java/swt-3.2_pre1
=net-p2p/azureus-2.3.0.4
=x11-libs/gtk+-2.8.6
=dev-java/swt-3.2_pre1
=dev-libs/glib-2.7.1
=x11-libs/gtk+-2.8.6
=dev-libs/glib-2.8.3
=x11-libs/cairo-1.0.2
=x11-libs/pango-1.10.1
=sci-astronomy/celestia-1.4.0
=dev-php/mod_php-5.0.0 -x86
media-video/nvidia-glx ~x86
media-video/nvidia-kernel ~x86
app-portage/layman ~x86
media-libs/glitz
media-libs/mesa
x11-apps/mesa-progs
sys-apps/man
x11-base/xgl
x11-libs/cairo
x11-libs/qt
x11-misc/util-macros
x11-proto/glproto
x11-wm/compiz-quinnstorm
x11-wm/compiz-vanilla
x11-libs/libwnck
virtual/xft
x11-base/xorg-x11
x11-libs/libX11
net-irc/xchat-gnome
x11-proto/kbproto