Now, the part that gets really weird and annoying, and we haven't properly diagnosed this yet, is if you connect more than 2 boards in a USB hub, things start to get very unstable, the hubs don't like it. Right now, the best possible configuration which works entirely stably is to connect each board to its own USB port on your computer. I know this will be a pain if you have a lot of boards, and by all means, feel free to play around, but i know that this will work. Hopefully we'll have this firmware update soon and all this won't be an issue any more.