Maya wont Load

If anyone has any ideas please let me know I was rendering using Maya software and it failed mid render, then I tried using Mental Ray still failed. Opened a new scene then rebooted the computer and maya and now Maya wont load at all just lists alot of errors.

// Error: file: C:/Program Files/Autodesk/Maya2009/scripts/startup/layerEditor.mel line 4133: Could not find attribute named "defaultRenderLayer.precompTemplate" //
// Error: Fur::executeCommand MayaState: (kFailure): Unexpected Internal Failure //
// Error: file: C:/Program Files/Autodesk/Maya2009/scripts/startup/autoLoadPlugin.mel line 46: initializePlugin function failed (Fur) //
// mental ray for Maya 10.0
// mental ray for Maya: using startup file C:/Program Files/Autodesk/Maya2009/mentalray/maya.rayrc
// mental ray for Maya: setup
// mental ray for Maya: initialize
// mental ray for Maya: using 1 license
// mental ray for Maya: register extensions
// mental ray Node Factory: loaded
// Error: file: C:/Program Files/Autodesk/Maya2009/scripts/others/miImfkeyOverrideScriptJob.mel line 37: No object matches name: renderLayerManager.renderLayerId //
// mental ray for Maya: successfully registered
// mental ray for Maya: loading startup file: C:/Program Files/Autodesk/Maya2009/mentalray/maya.rayrc
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/AdskShaderSDKWrappers.mi
// generating Maya nodes...
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/architectural.mi
// loading C:/Program Files/Autodesk/Maya2009/mentalray/lib/architectural.dll
// generating Maya nodes...
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/base.mi
// loading C:/Program Files/Autodesk/Maya2009/mentalray/lib/base.dll
// generating Maya nodes...
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/contour.mi
// loading C:/Program Files/Autodesk/Maya2009/mentalray/lib/contour.dll
// generating Maya nodes...
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/paint.mi
// loading C:/Program Files/Autodesk/Maya2009/mentalray/lib/paint.dll
// generating Maya nodes...
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/physics.mi
// loading C:/Program Files/Autodesk/Maya2009/mentalray/lib/physics.dll
// generating Maya nodes...
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/production.mi
// loading C:/Program Files/Autodesk/Maya2009/mentalray/lib/production.dll
// generating Maya nodes...
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/subsurface.mi
// loading C:/Program Files/Autodesk/Maya2009/mentalray/lib/subsurface.dll
// generating Maya nodes...
// parsing C:/Program Files/Autodesk/Maya2009/mentalray/include/surfaceSampler.mi
// loading C:/Program Files/Autodesk/Maya2009/mentalray/lib/surfaceSampler.dll
// generating Maya nodes...
updateRendererUI;
updateRendererUI;
// Error: file: C:/Program Files/Autodesk/Maya2009/scripts/others/mentalrayUI.mel line 1615: Object not found: mainRenderMenu. //

Sounds like something got corrupted and now Maya is unable to load several key scripts, including the render settings UI. I'd suggest you run a chkdsk on whatever drive you've got Maya installed on, and if it finds any errors, let it try to fix them. I'd also suggest running a SMART test to see if the drive might be starting to fail. One of my drive's died just two days ago, so maybe there's a full moon in Hard Drive Land or something.

Also, when's the last time you defragged the drive? If it's badly fragmented, that can certainly cause difficulty in finding and/or loading files. SL is particularly brutal on hard drives in this regard (unless you have your cache on a dedicated scratch disk), and rendering operations tend not to be exactly kind either. If you don't mind investing a little money to keep your drives from ever fragmenting again, I highly recommend Diskeeper. It's a fantastic utility.

In any case, after you're done diagnosing, and hopefully fixing, the drive, uninstall and reinstall Maya. Assuming the drive is not actually failing, that should set things back to normal.

I deleted preferences and got it to load. I will run defrag now just to be sure. I installed Zbrush 3.5 yesterday and it installed a new C++ thing so maybe that contributed.

I'm glad that worked. I'd still recommend running a chkdsk, just to be on the safe side. And defrag at least once a week, if you're not using an auto-defragger like Diskeeper.