To quote from the qualification charts for maya
"There are many cards based on GeForce GPU chipsets. Nvidia and Autodesk do not recommend these cards for use with Maya as you may experience various refresh, display and stability problems and inadequate performance. We suggest you choose from Nvidia's workstation cards instead, such as the Quadro families which are much better suited to high-end 3D packages such as Maya."
"No pressure, no diamonds" Thomas Carlyle