Newbie question. Just got a new machine which came with CD/RW drive. Fitted additional DVD/RW but machine sometimes freezes when inserting discs into either device. I'm sure there is a conflict somewhere. What should the jumper settings be ? What does CSL do ? Do I need to set something in the BIOS ? Any help would be much appreciated. Machine is Dell Dimension 8300 (3.0Ghz), XP Home, DVD is NEC 1300 firmware 1.07. Thanks.