How ever I ran into an issues with compiz, either I could not enable it at all or the window decorations ( that's the name of the title bars for you). In order to solve this I had to change a setting in compiz and that means installing Compiz Settings Manager. Just go to the Ubuntu Software Center and install it if you haven't installed it yet.
Now open it and look for "Window Decorations"
There change the command to "compiz --replace"
That solved my problems. Good luck!