Auto-run Disabled Driver '0'/ Blender Crashes When Render

Blender 2.70a. My blender software slows when I render, then crashes. The error message at the top of the screen is Auto-run Disabled Driver ‘0’ I tried to update the driver. That helped however, the problem continues. I’m technically savvy, but with out too much jargon, does anyone know the best antidote for this issue?