In Unity 5 on Mac all GUI fonts are missing.

I just got Unity and started it up this morning, I went to open up my first project and I discover that all the fonts on the GUI are missing with black boxes in there place. I have found one user with the same issue back in May but they got no response. Ive been working on this all day and admitted defeat. Please help me so I may start working with this awesome engine and make my first game.

I have installed an older Version of Unity, in my case 5.2 fixes the problem. You can download older versions here: Download Archive