Mental Ray does not Render the Scene

Hi guys, I would Appreciate some help on this issue. I have a scene with dynamics, ncloth, building model setup in Maya 2013 with Mentalray. here are following details

1. frame rate > 30 fps
2. there are paint effects - grassclump (but i did Modify>PaintEff..>poly)
3. there are 7 render layers with different passes on each
3. render diagnostic gives me only one error

MENTAL RAY RENDER DIAGNOSTICS:
Miscellaneous
- Stroke rendering of paint effects is unsupported.

but when I do a Batch render nothing happens.. The render log is pasted below

7/3/2013
Starting "C:\Program Files\Autodesk\Maya2013\bin\mayabatch.exe"
mental ray for Maya 2013
mental ray: version 3.10.1.4, Jan 31 2012, revision 165283
Output Wi// Maya exited with status 1
7/3/2013
Starting "C:\Program Files\Autodesk\Maya2013\bin\mayabatch.exe"
mental ray for Maya 2013
mental ray: version 3.10.1.4, Jan 31 2012, revision 165283
Output Window// Maya exited with status 1

To make things worse a Test scene with Poly sphere animated in Z axis with 30 frames, Batch Render behaves the same way. It does not render. and renderlog for this is..

7/3/2013
Starting "C:\Program Files\Autodesk\Maya2013\bin\mayabatch.exe"
mental ray for Maya 2013
mental ray: version 3.10.1.4, Jan 31 2012, revision 165283
Output Wind// Maya exited with status 1
7/3/2013
Starting "C:\Program Files\Autodesk\Maya2013\bin\mayabatch.exe"
mental ray for Maya 2013
mental ray: version 3.10.1.4, Jan 31 2012, revision 165283
Output Win// Maya exited with status 1