Sorry I did mean to add a comment about that ! Yes I did uninstall and reboot, sadly such an easy fix failed. I'm just so unlucky with computers. Always got some kind of problem, software conflict or hardware dying :-( My Plextor is just over a year old, I bought it because of the name and reputation ..... hmnnnn. The machine this drive is installed in was built about a year ago by an i.t. professional using all new components btw, I feel gutted.