[water]

I will never,ever understand computers.I was connecting the scanner via one of the two USB slots on the front of my computer,the other being used by my broadband modem.I unplugged the modem and tried that slot and hey presto,the bl##dy thing recognised it and ran the wizzard and installed fine!!.As a matter of interest I plugged the modem into the previously 'not working' USB slot and it worked fine as well