Hello Greytar!
I have a focusrite 6i6 which is the same thing as the 2i2 almost with more ins/outs. So if all you did was installed and updated the driver, then there is still a few very crucial steps that you must do before it works! First off if you where not using an audio interface before now I can guess that you most likely have a MMX/DirectX as your Driver Type in the preferences and you need to install asio4all version2.11. If you already have asio then you may have not yet set up your interface setup properly in the preferences/audio/audio device. Hit the drop down menu here and select Focusrite USB 2.0. Let me know if it solves your problem!