Fresh Slack 10 install, and when I first got it up, sound worked perfectly. Now, however, dmesg gives me this:

Crystal 4280/46xx + AC97 Audio, version 1.28.32, 17:55:58 Jun 13 2004
cs46xx: Card found at 0xffafe000 and 0xff900000, IRQ 9
cs46xx: Unknown card (109F:5313) at 0xffafe000/0xff900000, IRQ 9

Unknown card? Huh!? The output of lspci:

00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
00:01.0 PCI bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 03)
00:07.0 ISA bridge: Intel Corp. 82371AB/EB/MB PIIX4 ISA (rev 02)
00:07.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01)
00:07.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01)
00:07.3 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 02)
00:0b.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator] (rev 01)
00:12.0 Ethernet controller: D-Link System Inc RTL8139 Ethernet (rev 10)
00:13.0 Multimedia audio controller: VLSI Technology Inc QSound ThunderBird PCI Audio (rev 19)
00:13.1 Input device controller: VLSI Technology Inc QSound ThunderBird PCI Audio Gameport (rev 19)
00:13.2 Serial controller: VLSI Technology Inc QSound ThunderBird PCI Audio Support Registers (rev 19)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV200 QW [Radeon 7500]

I am using the very same kernel, and the same kernel modules. All the same alsa software is installed as when I first got it working, and none has been added. Could it be, by any chance, that dmesg says:

PCI: Found IRQ 9 for device 00:07.2
PCI: Sharing IRQ 9 with 00:0b.0

Someone PLEASE help me. This has happened before, and the only way I got around it was using a 2.6 kernel (I'm using 2.4.26 now). I do not want to do that now, I'd like to just get sound working with this version.

UPDATE: OSS sound works, apparently. I used MPlayer and noticed that I was getting sound, and the default for MPlayer is OSS, which I haven't changed. Umm...why does sound work here? I thought I read something about OSS modules interfering with ALSA, but I don't think I have any loaded...

Output of lsmod:

cs46xx 55892 0
ac97_codec 12084 0 [cs46xx]
soundcore 3396 3 [cs46xx]
uhci 24444 0 (unused)
usbcore 59308 1 [uhci]
8139too 14376 1
mii 2272 0 [8139too]
crc32 2880 0 [8139too]
agpgart 43940 0 (unused)