Z-Wave problem after new install

I have just transferred Indigo onto a new mac mini by copying the Indigo folder over, all works on the cm15 pro side but cant get the Z-stick to work

Started interface "Z-Wave 1.0.73"
Z-Wave Error "Z-Wave" serial port open error: could not open port /dev/cu.SLAB_USBtoUART: [Errno 2] No such file or directory: '/dev/cu.SLAB_USBtoUART'
Z-Wave Error make sure the USB virtual serial port driver (ex: FTDI driver) is installed and correct port is selected
Z-Wave Error Z-Wave might be disconnected
Z-Wave Error silently retrying serial connection every 5.0 seconds

Have you made sure the most recent drivers are installed from http://www.silabs.com/products/mcu/Page ... ivers.aspx ? I had the exact same error first time i setup my Z-Stick and it turned out to be the driver was out of date.. (then i found the z-stick was defective, but that was a completely different matter)

Yes, that solved it, many thanks