To start off, I have no idea how this problem started. One minute I was typing perfectly fine, then suddenly my keyboard starts spamming 'f850' over and over. I've tried unplugging and replugging and the computer recognizes it. However, as soon as I hit a key it starts spamming again. It isn't a macro, I've tried uninstalling and reinstalling Synapse, I've rebooted my computer several times. I don't know what to try anymore. It also happens on any computer I plug it into. I've even tried updating the firmware and that sort of thing. It's on the correct version... Hopefully SOMEONE can help with this! I've run out of options after 4 hours.