Some reports on problems with retail Superdrives and 10.2.4The solution seems to lie in the jumper settings and having the drives organized in the right way along the IDE cable. From the article: "Interestingly, I updated to 10.2.4 tonight, and upon restarting, noticed that the Pioneer was not showing as being installed. The system did not appear to see it all all. I shutdown, unplugged the cable to the CDR drive, and restarted. The Pioneer was working fine again. Swapping the drives around so the Pioneer was in the top bay solved the problem, they are both now seen by the system. Jumpers were set at cable select and still are."