Need help resolving memory leak in Atmospheric Scattering asset

I'm using the Atmopsheric Scattering asset from Status-C, http://u3d.as/content/status-c/atmospheric-scattering/2pW

I have observed that there is a memory leak, about 18MB/minute, when using either the sample scene, or just the prefab in my own scene. I have tried this with the the Safari and Chrome plugins on Mac OS, and also on Windows Internet Explorer. I've contacted the author for some assistance, but he has not responded in two weeks. I'm having a hard time locating the source of the leak. I've disabled portions of the code selectively, piece at a time, to look for the high level parts that are generating the leak. I was planning on diving deeper once I could localize the error to a routine. However, that yielded nothing helpful. The leak persists unless I disable everything.

Does anyone have a solution for this leak, or some advice on how to track it down?

Thank you, Joel

Edited to say that I'm still working on tracking down the memory leak. I'd appreciate it if anyone had some help to offer.