I've had a Zoom H4 recorder for ages and have been really happy with it. Just recently, I upgraded my MacBook to MacOS High Sierra (version 10.13.4) and guess what? Nothing works anymore! I connect to the MacBook in the usual way and then elect 'connect to PC'. It then seems to be stuck on 'now connection to PC'. I've checked on the Zoom website and nothing there seems to be of help. Does anyone have any suggestions on how to get it to work again? Thanks in advance.