I have 2 pioneer dvd drives. Just recently when I put a cd or a dvd in to record onto, it switches my computer off. one is a dvr 109 and the other a dvr 111d. I have had these drives sometime and never had any problems. Also I use pinnacle instant cd/dvd and when I try and use the video side of the programe it says there is a registry error.I have used these drives for ages and have been happy with them but they now just switch of my compter when I try and record on to cd or dvd. Can you help please. Thanks Cas