Upside Down Launching

[tmlyon13]

Every time i try to start it the window it is upside down as well as the gameplay.  I don't know why this is happening.  The words and the launcher for hexxit always make the game upside down.  Some of the other versions of the other mod packs also did this to my launcher but on the next update they were fixed.  I tried all of the versions for hexxit but all of them seem to invert my window

I am playing on a mac.