Sleep light doesn't work.

Okay. I have searched here and google and to no avail with an answer for this question.

I recently had to replace the bottom case of my white macbook, which we all know is taking the entire computer apart and putting it back together. After replacing the broken part with the new one, my entire system works just the same as (if not better than) before. The only problem I'm experiencing is that my sleep light doesn't flash.

I am mostly positive that I hooked the connection from the sleep light to the hard drive caddy perfectly. I say mostly b/c it's hard to tell which side of that thing is up. But I followed the picture description on this site.

I really want to bring this back, so any info would be great. But I dread taking this thing apart again >.<