Kirk - I am using the isapnp option of alsa rather than the isapnp utility, and I have not yet upgraded the alsa software. It turns out, as usual, that the problem was easier to solve than I thought! I decided to take a look at the contents of /etc/conf.modules and found to my horror that I had not added the aliases that belonged there at all - they were still available on my backup /etc directory, but not in the working one. So, I put them in, saw that the parameters looked okay, rebooted, and now I have sound again. I may upgrade my alsa drivers - and have saved your suggestions. Thanks, and sorry to have hollered prematurely for help... Chuck. My web site is http://www.mhonline.net/~chuckh While money doesn't buy love, it puts you in a great bargaining position.