Hi there, I installed AutoCAD 2015 for MAC a couple of times already but it never gets to open and it doesn't give me any information about what's happening.

It pops up the loading window for one second and then it automatically disappears. I don't figure out how to fix this problem. 

Please HELP! 

thank you very!

PD: I don't know if it matters but it's AutoCAD Student Version.