on the spinning screen bit. ive had it happen to me on previous versions too.

to fix, move back to the window where the spinning is occurring. you'll notice that any kind of movement away form the edge only relsuts in a spin and the mouse jumping out of the screen. Ok, so move the mouse to the edge of that screen just enough so that you notice a small spinning movement. then right click and left click. You notic the spinning action is gone again and all is back to normal.