Ubuntu :: Cannot See The Minimize - Restore - Close Icons On Top Right Of The Application?

recently installed via synaptic some packages about netbook to try the new appearance. Having decided that I didnt like it, I chose to revert, by uninstalling those packagesMy problem now is that on every application I execute, the icons that are usually found on top right of the screen (minimize, maximize and close) cannot be seen and, if I want to shut an application down I must do it via control q or control w depending of the application. I mean every application, be it firefox, opening folders on the hard drive, open officeIt may be that there is still a package I must uninstall.