[linux-audio-user] Problem with virmidi module

Hello, all, I'm trying to get virtual midi going so I can use midi sequencers with fluidsynth. I'm following the Linux MIDI Howto, and it has directions to test-load the snd-virmidi module, but when I do that I get the following results: root@Knoppix:/home/knoppix# modprobe snd-virmidi snd_index=1 FATAL: Error inserting snd_virmidi (/lib/modules/2.6.12/kernel/sound/drivers/snd-virmidi.ko): Unknown symbol in module, or unknown parameter (see dmesg) Checking dmesg reveals the following: snd_virmidi: Unknown parameter `snd_index' Card-VirMIDI #1 not found or device busy Card-VirMIDI soundcard not found or device busy snd_virmidi: Unknown parameter `snd_index' So I tried it without the snd_index part: FATAL: Error inserting snd_virmidi (/lib/modules/2.6.12/kernel/sound/drivers/snd-virmidi.ko): No such device What am I missing? I'm using a laptop whose brand name I have no idea of, though lshw lists the cpu as a VIA with 1200 MHZ speed; in fact, all the hardware shows up as VIA. Any pointers would be greatly appreciated. Thanks, Terrence