So when ever I open up my minecraft (on a mac) i am able to open it up but once it is running i cannot do anything on the game without holding down either left or right click on my mouse. I also can't look around in game without holding down the mouse as well. I have tried reinstalling minecraft as well as using a variety of mouses. Is there a setting that i need to change?( i have had minecraft for 6 months and never had this problem.