ART fatal error maya 2014

Hi I’ve recently installed art on my pc and im enjoying it alot. But here’s the pickle, i installed ART on the stations at school i found my being stop with the toolset when it’s time to build the control rig.

here’s the fatal error shown:
Fatal Error. Attempting to save in C:/Users/ocharron/AppData/Local/Temp/ocharron.20160916.1519.ma

I have the most recent Mayatools and Modules, I have create a Disable maya CIP value:1 environnement variable.
If anyone can help me to solve the problem it would be greatly appreciated.

ok i just updated the drivers of the video card, now it let me snap the thumbnail and the rig is built for half a second and then it disappear and if i restart the rig creator the same error pops afterwards.

here’s the new error:
Error: ImportError: file C:/Program Files/Epic Games/4.12/Engine/Extras/Maya_AnimationRiggingTools/MayaTools/General/Scripts\ART_autoRigger.py line 9: No module named Modules.ART_UpperLegIKTwist #