Same problem for me. The problem appears when upgrade the package from 1:3.4.2-0ubuntu4 (originally installed when upgrade to precise 12.04 release) to 1:3.4.2-oubuntu5 during normal upgrades proposed.
In one laptop i use the 1:3.4.2-0ubuntu4 version and no problem at all, otherwise another 2 machines win 1:3.4.2-0ubuntu5 version is affected by the bug.
Same problem for me. The problem appears when upgrade the package from 1:3.4.2-0ubuntu4 (originally installed when upgrade to precise 12.04 release) to 1:3.4.2-oubuntu5 during normal upgrades proposed.
In one laptop i use the 1:3.4.2-0ubuntu4 version and no problem at all, otherwise another 2 machines win 1:3.4.2-0ubuntu5 version is affected by the bug.