Silverlight Smooth Streaming Client Memory Usage

Question

The sample Smooth Streaming Client provided here continues to grow in memory until it fails out with an Out of Memory Exception. Our version is using Silverlight 3 and we have tried the Beta 2 and TRW 1 versions of the Smooth Streaming Client. However, the memory usage continues to be a problem.

There are numerous values to control the buffers in the API like FlushBuffers, but none of them seem to affect the memory usage.

Using WinDbg, I see that there are giant System.Byte arrays and System.UInt, but I can't seem to clear them out.

Any thoughts as to how I can clear the buffers or chunks to keep the memory usage more reasonable?