Using steam for the first time and i've tried a couple of games which im using right from the steam browser/ program/ thingy. The problem is my curser becomes 'stuck' inside a very small window of space and I can't move it outside of the box space it is stuck in to open the window to full screen, or to do anything else, the curser can only move around inside the small space. I have searched and found loads of forums full of people with the same issue but no solutions?