I've had a Sum Vision 250Gb External hard drive for some time now and have had no problems with it. Now - it will not be recognised by my computer running on XP. I don't know if it's coincidence but it seemed to happen after i loaded Sky broadband software. I unplug the storage everytime i use my computer as it's a laptop that i put away. I've tried a new USB 2-1 lead (clutching at straws I know!) and also the driver CD both to no avail. IT HAS MY ENTIRE MUSIC COLLECTION ON IT!!!! Does anyone have any advice?