mrBake not found ERROR in Maya 2013?

Hello,
I am having an issue with Maya's batch bake options box. When I click the options box nothing happens and I get this error (Error: file: C:/Program Files/Autodesk/Maya2013/mentalray/scripts/mrBake.mel line 2359: Item not found: persp // ). I located the mrBake.mel file and refreshed it. I have mental ray loaded and the batch bake function works fine but I need to adjust the settings for more accurate results. If any one can help me I would appreciate it!!!

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