I had to get another MOBO since the first one was apparently not compatible
with my software. With this MOBO now I do not have the problem with sound
re USB webcam.

Unfortunately still now Intenet connection.

/sbin/lspci
00:00.0 Host bridge: ALi Corporation Device 1683
00:01.0 PCI bridge: ALi Corporation PCI to AGP Controller
00:02.0 PCI bridge: ALi Corporation M5249 HTT to PCI Bridge
00:03.0 ISA bridge: ALi Corporation M1563 HyperTransport South Bridge (rev 20)
00:03.1 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
00:04.0 Multimedia audio controller: ALi Corporation M5455 PCI AC-Link Controller Audio Device (rev 03)
00:0e.0 IDE interface: ALi Corporation M5229 IDE (rev c5)
00:0e.1 Ethernet controller: ALi Corporation M5261 Ethernet Controller (rev 30)
00:0f.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:0f.1 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:0f.2 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:0f.3 USB Controller: ALi Corporation USB 2.0 Controller (rev 01)
01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200] (rev a1)
I posted under Web & Internet the configuration output of lsmod..