No soundcard detected in Dapper

No soundcard is detected in dapper, although it works with other distros, as well as older Ubuntu release. Output from lspci -v:

0000:00:00.0 Host bridge: ALi Corporation M1541 (rev 04)
        Subsystem: ALi Corporation ALI M1541 Aladdin V/V+ AGP System Controller
        Flags: bus master, slow devsel, latency 32
        Memory at e0000000 (32-bit, non-prefetchable) [size=128M]
        Capabilities: <available only to root>

0000:00:01.0 PCI bridge: ALi Corporation M1541 PCI to AGP Controller (rev 04) (prog-if 00 [Normal decode])
        Flags: bus master, slow devsel, latency 32
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
        I/O behind bridge: 00008000-00008fff
        Memory behind bridge: 80400000-804fffff
        Prefetchable memory behind bridge: 80500000-820fffff

0000:00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03) (prog-if 10 [OHCI])
        Flags: bus master, medium devsel, latency 32, IRQ 9
        Memory at 82100000 (32-bit, non-prefetchable) [size=4K]

0000:00:07.0 ISA bridge: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV] (rev b5)
        Subsystem: Unknown device 4341:5245
        Flags: bus master, medium devsel, latency 0

0000:00:0f.0 IDE interface: ALi Corporation M5229 IDE (rev 20) (prog-if 8a [Master SecP PriP])
        Subsystem: Unknown device 4341:5245
        Flags: bus master, medium devsel, latency 32, IRQ 14
        I/O ports at 7090 [size=16]

0000:00:14.0 Ethernet controller: VIA Technologies, Inc. VT86C100A [Rhine] (rev 06)
        Subsystem: D-Link System Inc DFE-530TX rev A
        Flags: bus master, stepping, medium devsel, latency 32, IRQ 10
        I/O ports at 7000 [size=128]
        Memory at 80100000 (32-bit, non-prefetchable) [size=128]
        Expansion ROM at 80120000 [disabled] [size=64K]

0000:01:00.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro AGP 1X (rev 5c) (prog-if 00 [VGA])
        Subsystem: ATI Technologies Inc Rage Pro Turbo AGP
        Flags: bus master, stepping, medium devsel, latency 32
        Memory at 81000000 (32-bit, prefetchable) [size=16M]
        I/O ports at 8000 [size=256]
        Memory at 80400000 (32-bit, non-prefetchable) [size=4K]
        Expansion ROM at 80420000 [disabled] [size=128K]
        Capabilities: <available only to root>

The Computer has an integrated soundcard, and it has worked with other distros.