Hi -- Quick question. I skimmed through the archives and didn't see any obvious answer to this question. Is cells thread safe? If not, is there a particular pattern of use that one can follow to avoid problems in a multiprocess scenario? I have an application that is multithreaded and I would like to explore how to use cells to drive the dataflow. I've read through the examples and looked over the code a bit. Seems like I could get in trouble if multiple threads tried to change a cell with dependencies at the same time. If this is a silly question and I have missed some obvious explanation somewhere, please just point me in the right direction. Thanks, -- Duane