I need help with simmed cloth and Mental Ray render

[ryannichols]

I am new to 3Ds Max and posting on the message boards I apologise in advance. I created a scene for a demo reel that uses the cloth modifier using the tutorial at http://marlev.deviantart.com/art/Making-of-curtains-in-3ds-Max-117249472 I got the animation that I want to use, but it wont animate in the render, it locks up and then crashes. I am using the Mental.Ray.no.gi preset. I have no idea what I did wrong any help would be great. I uploaded the scene to my dropbox website, it is the zipped file labeled post, if anyone want to take a look at it and let me know what I can do to get it to work. Thank you.

https://dl.dropbox.com/u/102889918/Post.zip