Hi Bigvee. Just got my eas software running. You didn't mention what Range Rover you had or the cable connection you've bought. My one is a usb connector. Initially had some problems because the eas connector in passenger footwell had some old dried water muck on it from previous failed o rings. Cleaned it up then followed the procedure I was given (its the Storey Willsons EASunlock software from RSWSolutions - can be downloaded free). Firstly had to set my laptop language on the control panel to English (United States). Then put the disc in. Turned on ignition to 2nd position. Then with stereo, HEVAC and dash all switched on, plugged in OBD and USB. Then ran the software, which will automatically search your device com port. Mine flashed up COULDN'T CONNECT, but advised to configure from EAS dropdown menu. Was using my cable in usb port 6 on the computer, so selected this from drop down menu, and then 'initialise'. Takes about 10 seconds for the syncing procedure and then the Red box next to 'status' turns greens: Good Idle. The 35mph warning on dash will also come up while using the software.
Hope this helps, let us know how you get on.