Knoppix is unable to find the soundcard

I have a ESS Technology 1988 Alegro Soundcard

I checked in Control Center and looked for ESS in hardware, but wasn't listed, so I put it as Auto-Detect
Then I went to Soundcard Configuration, clicked OK to probe for PnP cards, then it says:
"You don't seem to be running any kernels with modular sound enabled. (soundcore.o was not found in module search path)
To use sndconfig, you must be running a kernel with modular sound, such as the kernel shipped with Debian GNU / Linux or a 2.2 kernel and sound must be compiled as modules.

I also use DamnSmallLinux and the sound works on there