Was just curious. I'm having this exact same problem. Ive had an owc data doubler in my computer for about two years. Approximately two months ago my hd stopped being detected. I tried putting in a new 1 tb hd, and while it registered at first, after putting my computer to sleep once it is no longer detectable. The one major thing that makes my problem different from the ones outlined here is that the optibay still detects my optical drive when I put it back. I'm not exactly sure how to go about fixing this problem. Does anyone have any insight?