Important Note: According to the Ubuntu Help:
hey note - this method is much less reliable.
UsingUpdate Manageris likely to be much less problematic.
If you are a power user, then let’s move on.
For some reason Wordpress makes it look like a single dash.
Reboot, and you are all done!
I tested it out and came to the same conclusion, no fix as of yet.
Update:
apt-get install xfs
apt-get install –reinstall xfonts-base