sound problem, hdd LED problem

2 things:

The HDD LED on my case is not working. The power LED, power switch, etc. all work. When I plug the power LED connector onto the HDD LED pins on the board it works. But plugging the HDD LED cable onto the HDD pins gives nothing. I'm guessing the HDD LED is dead. Any other ideas?

My case has 2 front speaker/headphone jacks, and the mobo has onboard surround audio. From the case, I have the following cables:

L-out, R-out, L-in, R-in Mic, Mic, Gnd, Gnd.

My Mobo has the following pins:

LFE-out, Center-out, Surround-out-R, Surround-out-L, Jack-detect, SPDIFI, SPDIFO, Gndx6, void

Currently, I have L-out plugged into Surround-out-L, R-out plugged into surround-out-R, and the 2 GND plugged into the GND opposite these 2 pins. The front sound jacks don't work, but the rear ones do (they are part of the mobo).

What is likely to be wrong?

Thanks in advance for any help.