Calculating dependencies /
!!! All ebuilds that could satisfy ">=x11-drivers/nvidia-drivers-100.14.19" have been masked.
!!! One of the following masked packages is required to complete your request:
- x11-drivers/nvidia-drivers-100.14.19 (masked by: package.mask)
/etc/portage/package.mask:
#=media-sound/jack-audio-connection-kit-0.102.20

- x11-drivers/nvidia-drivers-100.14.19-r11 (masked by: package.mask)
- x11-drivers/nvidia-drivers-100.14.23 (masked by: package.mask)
/usr/portage/profiles/package.mask:
# Doug Goldstein <cardoe@gentoo.org> (01 Nov 2007)
# beta NVIDIA drivers, not supported. bug #196679

- x11-drivers/nvidia-drivers-100.14.23-r10 (masked by: package.mask)

For more information, see MASKED PACKAGES section in the emerge man page or 
refer to the Gentoo Handbook.
(dependency required by "x11-base/xorg-server-1.4-r4" [ebuild])