I have a Dell Dimension 2400 PC for which I have installed a second optical drive. It already had a CDRW drive and i have installed a DVDRW drive in the second bay. The drive i installed is a Samsung SH-S182D. The drive is not recognised by Windows so i checked the BIOS and it is not recognised there either. I set the jumper setting to CS which the manual said to do but this has not resolved the problem. Any ideas ????