Where did you download the drivers from.What kind of card do you have?
You should be able to use the built in "hardware drivers" utility to install any propriety drivers you need.
You`ll find it in your menus under System>Administration>hardware drivers.
Although you cant see buttons ....mmmm
But then how are you running a terminal if you cant see any buttons???
Either way if you can use a terminal you could try installing envyng which will download the latest nvidia/ati drivers for you.
Code:
sudo apt-get install envyng-core