I have not used this unit in some time and recently connected it to my new Core I7 based pc. I have not hooked it up for some time and but followed the pdf online. I have the unit connected via toslink cable to my pc. My problem is that the control that contains the Dolby Digital decoder and connections does not seem to be functioning, The green standby power light comes on, but I am unbale to make it move to any of the connections and the main LCD does not light up. I do hear some popping sounds come from the speakers, but that is all. Is there anything I can do? Any suggestions would be appreciated.