I present for your delectation: how not to update a package. WTF is anyone supposed to make of this:
nvidia-graphics-drivers (310.14-1) unstable; urgency=low
LEGACY GPUs: If you have a GeForce 6xxx, GeForce Go 6xxx, GeForce 7xxx,
GeForce Go 7xxx, Quadro NVS 110/120/210/285/440, Quadro FX 350/540/550/560,
Quadro FX 1400/Go1400/1500/2500/3400/3450/3500/4000/4500/5500, nforce 4xx,
nforce 6xx, i.e., any GPU based on the NV40/NV41/NV42/NV43/NV44,
C51/C61/C67/C68/C73, or G70/G71/G72/G73 chips or a variant thereof,
DO NOT INSTALL THIS RELEASE!!!
Use the nvidia-legacy-304xx-driver, nvidia-legacy-304xx-kernel-dkms
packages instead.
-- Andreas Beckmann <
debian@xxxxxxxxxxxx> Tue, 16 Oct 2012 18:00:49 +0200
Extra points if you understand the bollocks *and* see why it's bollocks nevertheless.