Try the second thing I mentioned then. Your browser was probably just being funky.
I downloaded the 3DS Max 2013 .exe setup file. I used it and it didn't work. I downloaded the 3DS Max 2012 .exe setup file. Though, that 2012 .exe setup file has over 3 GB. I think the website, no, the ENTIRE website has already been updated for some reason. I think the 3 GB 2012 .exe setup file has everything. The website only has the 6MB 3DS Max 2013 .exe file. And yes, I was downloading the student version.