I have Cambridge sound works speakers with a sub woofer running on a dual 876PPC 4 with 786 MB of ram, with OS 10.3.6. About 7-10 days ago--around when 10.3.6 came out, only my left speaker would work, now it is only out of the computer. I tried unplugging and repluging all my cords--no luck. I finally traded subwoofers from another computer--no luck. Any suggestions? If this is my sound--and the sound does come out of the computer, what am I looking at for repairs? I turn on my music 75% of the time I have my computer on. I did zap the pram. Thanks for any help you can give me. Thanks, Gail -- Gail Grainger ggrainger at deweybrowse.org http://www.deweybrowse.org