Okay, I'll bet you heard this before...I have a DUO and the sound just went. I have to turn up the TV set volume all the way just to hear faint pings and pongs from the games' SFX. The video comes in good- not the sound. Any fix for this? I also have the Turbografx 16 with Cd-ROM. Should I try to fix the DUO or try to get a system 3.0 card?