Annoying bugs on OS X!

So, every time after a LoL game when I come back to my desktop, the resolution of textures are very low and also every window I had opened before I started playing, moves with its upper like 40% over the screen, so that close button and etc are not accessible anymore. I have to right-click-close the app then on the dock.

Second bug. Whenever I play LoL and I get a call (which gets displayed on my desktop when connected with my iPhone) and I press cmd + tab to minimize LoL, the "answer" button is not visible, but I can still hear the sound of the ringing app.

Hope you kind of understand what I mean.

regards