*** This bug is a duplicate of bug 820028 ***
https://bugs.launchpad.net/bugs/820028
I have this bug still on 12.04, using this version:
rich@RichU:~/temp$ dpkg -s software-properties-common
Package: software-properties-common
Status: install ok installed
Priority: optional
Section: admin
To add some info here: it seems that a common theme for those suffering
from this bug is that they use laptops with Intel graphics chips. I am
also experiencing this bug with symptoms exactly as described here,
except I am using a desktop PC with an nVidia graphics card. (Dell
Vostro 410, nVidia