Log out buttons get messed up.

How to reproduce:
1) Click Log Out button to make Log out box appear.
2) Move the mouse over the buttons; they highlight blue.
3) Move the cursor over a button, click and hold the left mouse button, then drag the cursor off the button before releasing the left mouse button.
4) Move mouse over the button again, instead of highlight blue it looks like get pressed in. The other buttons still highlight blue.
5) Repeat step 4 on all buttons till every button is messed up.