I have been racking my brain for weeks trying to figure this out. On occasion I would receive the following message when submitting my renders to backburner.
"Task error: An unexpected exception has occured in the network renderer and it is terminating."
Most files rendered fine. I had no idea why this was happening. I scoured the forums and found nothing. well I just figured it out. When I was rendering a scene from a camera which had the Camera Correction modifier on the submitted rendering would fail!!
In conclusion: Backburner does not support the Camera Correction Modifier!!
I am running Max Design 2009 x64. If anyone knows a work-around I would appreciated it.