I have a board identification E189010. I have installed the CC s/w (selecting all options) and development kit s/w. When I plug in the USB lead two device drivers 'Dual RS232-HS' try to install but are not found. The MCS Demo fails to find the board. I have another board also designated E189010 but bought at an earlier time which does not appear to need these drivers and the board installs and works on the same PC. The boards appear identical, they have the same dip switch settings and the same LEDs light when they are powered.