After nvidia-graphics-drivers has been put into -proposed repository (http://launchpad.net/ubuntu/+source/nvidia-graphics-drivers/295.40-0ubuntu1.2 ) see bug #1011828, I tested the install and removal of both nvidia-current and nvidia-173 drivers on Precise Pangolin kernel 3.5.0-21 and had no problem so I can say the bug is fixed.
After nvidia- graphics- drivers has been put into -proposed repository (http:// launchpad. net/ubuntu/ +source/ nvidia- graphics- drivers/ 295.40- 0ubuntu1. 2 ) see bug #1011828, I tested the install and removal of both nvidia-current and nvidia-173 drivers on Precise Pangolin kernel 3.5.0-21 and had no problem so I can say the bug is fixed.