Adam,
I have read the load balancing guide and impelemnted correctly. Chat is working for the most part ... there are some features that don't work i.e. export log.
We are also experiencing issues with a few members when they try to access the chat rooms. The screen basically shows a blank page. Using Fiddler to investigate the error shows me pretty much the same error being thrown as above (binary stream error). I suspect they are related.