Maya 8.5 & Mental Ray

[DigitalPutty]

I worked on a Mac at school today using Maya 8.5 and Mental Ray. While there, I added lights to my scene and everything was working great! Now, I get home ... and NOTHING will RENDER!?

I know it isnt my Maya since I created a new scene, added lights ... rendered. So, it has to be something different with the Mac version and PC version ... or, something isnt turned on in my PC version.

Mental Ray is turned on ..... my lights are on ... I've even deleted my lights and added new ones ... they still wont render. I should also add that Maya is not giving me any errors and I can see my lighting in the viewport.

Please help! *cry*

Thanks.

[DigitalPutty]

Somehow ... my LAME Lambert shader got all jacked up and black? 0_o .... But wouldnt it still render something ... Im getting a headache.