Unity lock screen issue

Question

I upgraded from Ubuntu 13.10 to 14.04 and I still have the old lock screen. How do I change to the new one?

There was a compiz option to change between the two of them but it was removed in the last update :(

I use 64 bit version of Trusty.

Answer 1

A very similar question was post was asked. Apparently Onboard (the onscreen keyboard) can cause this to happen.

Fix: Disable Onboard