Hello at all!

Mental ray is killing me!

I made an animation which is 225 frames long.
Mental ray stops the rendering process at frame 29!
The funny thing is that the Mental Ray says:
rendering is complete...

With Maya renderer I never had problems like that!

Can anybody explain me what I have to do?
(Probably read my thread- Mental Ray problem)
And another question:

when you render with maya software in the render Tab is the
batch render command.
In the settings you can set the Cpu´s to use.
When you render with Mental ray the setting is different!
You can set how much ?threads? to use?
My setting is 2! In the help files is nothing listet about this
topic! For what is it?
Thanks to You!:attn: