I just got a new MacBook Pro and noticed that after installing all the updates, it sometimes freezes at the login screen and it has like a bluish tint on the screen...like it hasn't finished starting. The mouse works (but 1 mouse pointer stays in the top left corner). I can move it around, but when I click on something, nothing happens. The weird thing is when I tilt the MacBook Pro in different directions it unfreezes and the blue tint goes away and I can log in. Has anyone else ever had this happen? I haven't had any screen freezes other than every time I restart.