Hi, I have Maya 2009 installed on my Mac from the college I attend and it has been working fine up until a few days ago. The problem that I am experiencing is when I create an object and attach gravity to it nothing happens when I press play on the animation bar. Once gravity is attached the object should fall when the play button is pressed but it no longer responds to gravity on my computer. So far, I have uninstalled and re-installed Maya only to get the same results. Does anybody out there have an idea what the problem might be here.

Thank you.