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