Mates, The problem is my nForce AC97 Audio Controller on my K7N2 Delta motherboard is squealing in my ears. It's enough to drive you nuts......... The problem is more serious than I thought. I can stop alsasound and it still keeps squealing. I can mute everything in kmix -- same result. I can be in runlevel 3 and it still squeals. It gets better when sound is playing, but then goes back to squealing when the file is done. YaST has even got buggyirq configured. I have googled and RTFM and still no luck. What is weird is that since this is a dual boot machine, I can confirm that there is not problem at all like this with XP. It has to be kernel or interrupt related. Has anybody else 'heard' about this issue?? (no pun intended) I can hold down the cursor keys and scroll through text and the squeal gets more choppy (i.e. goes away when the key strokes are processed) Literally, my computer sounds like it is generating Morse code as I type. Here are some additional details on my config. The pci bus looks like this: linux:/home/david # lspci 0000:00:00.0 Host bridge: nVidia Corporation nForce2 AGP (different version?) (rev c1) 0000:00:00.1 RAM memory: nVidia Corporation nForce2 Memory Controller 1 (rev c1) 0000:00:00.2 RAM memory: nVidia Corporation nForce2 Memory Controller 4 (rev c1) 0000:00:00.3 RAM memory: nVidia Corporation nForce2 Memory Controller 3 (rev c1) 0000:00:00.4 RAM memory: nVidia Corporation nForce2 Memory Controller 2 (rev c1) 0000:00:00.5 RAM memory: nVidia Corporation nForce2 Memory Controller 5 (rev c1) 0000:00:01.0 ISA bridge: nVidia Corporation nForce2 ISA Bridge (rev a3) 0000:00:01.1 SMBus: nVidia Corporation nForce2 SMBus (MCP) (rev a2) 0000:00:02.0 USB Controller: nVidia Corporation nForce2 USB Controller (rev a3) 0000:00:02.1 USB Controller: nVidia Corporation nForce2 USB Controller (rev a3) 0000:00:02.2 USB Controller: nVidia Corporation nForce2 USB Controller (rev a3) 0000:00:04.0 Ethernet controller: nVidia Corporation nForce2 Ethernet Controller (rev a1) 0000:00:05.0 Multimedia audio controller: nVidia Corporation nForce MultiMedia audio [Via VT82C686B] (rev a2) 0000:00:06.0 Multimedia audio controller: nVidia Corporation nForce2 AC97 Audio Controler (MCP) (rev a1) 0000:00:08.0 PCI bridge: nVidia Corporation nForce2 External PCI Bridge (rev a3) 0000:00:09.0 IDE interface: nVidia Corporation nForce2 IDE (rev a2) 0000:00:1e.0 PCI bridge: nVidia Corporation nForce2 AGP (rev c1) 0000:01:06.0 FireWire (IEEE 1394): Texas Instruments TSB12LV26 IEEE-1394 Controller (Link) 0000:01:0b.0 RAID bus controller: Promise Technology, Inc. PDC20376 (FastTrak 376) (rev 02) 0000:03:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 MX 440] (rev a3) The modules loaded are these: linux:/home/david # lsmod Module Size Used by snd_pcm_oss 57896 0 snd_mixer_oss 19200 1 snd_pcm_oss snd_intel8x0 31396 0 snd_ac97_codec 69728 1 snd_intel8x0 snd_pcm 96776 3 snd_pcm_oss,snd_intel8x0,snd_ac97_codec snd_timer 24708 1 snd_pcm snd 60164 6 snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer soundcore 9056 1 snd snd_page_alloc 10248 2 snd_intel8x0,snd_pcm I'm not sure what else to check. Any help will be greatly appreciated. -- David C. Rankin, J.D., P.E. Rankin Law Firm, PLLC 510 Ochiltree Street Nacogdoches, Texas 75961 www.rbpllc.om