if the disk is older than june 2009 then you need to go to hp's website and give the latest drivers a try. If vista does not work, give xp drivers a try. Or once you download the file, right click it and give compatibility troubleshoot a try. I notice there is a basic driver pack, maybe give it a try. I did a google search and it looks like others did get theirs working, just did not see their solution. One thing you are unplugging it from the usb until you get it installed? Also are you using a usb hub or plugging it directly into the computer.
http://h10025.www1.hp.com/ewfrf/wc/s...ubmit=Go%20%BB