Thanks Edgars. Useful to know, but doesn't solve my original problem. I've found that the size limit for passing an area from server to client is somewhere between 301kb and 318kb.
I would like to know what BackgroundHALShouldPause does, and how to use it. While it's listed in the HAL Primitives report, it is not used in source code and it doesn't appear in the LMS HAL...
