I have played a little of the compize config.
Apparently I change something in the setting of the unity launcher.
What happen now is that when I resize a windows to be on all screen, I seen big thick black line where the unity launcher is suppose to be.
When I move the mouse toward the left side I see again the unity launcher.
Is there anyway to restart compize to default setting.
Or at least how can I set it back that I wont see that ugly line.
It is so annoying.