Maya crashes when valve plugin loads

Hi there. I have some problem with loading valve plugin in maya 2011. I was using that tutorial to setup plugins ( https://developer.valvesoftware.com/wiki/Maya ). When i load vsMaster plugin, it says “Fatal Error. Attempting to save C:\Users… …\Local\Temp\My username.20120824.1811.ma”. Few days ago it was okay, but now it crashes. Help please.

P.S. Sorry if it’s wrong topic