so guys, i am a student in a project lead the way class and so i downloaded the inventor pro 2013 on my laptop. it installed perfectly fine. It downloaded a bunch of other icons,all of which are opining and asking to register exept the actual autodesk inventor pro 2013!! i click on it but all that happens is it looks like it is starting to load, but then quits before it starts the actual program. NEED HELP!!!!