O.K., how do I back off today's updates? It's the one that put in 2.26.27-10 on Intrepid. There's a faint crackling now. Yesterday sound was fine.

System Preferences Sound can get a tone on OSS but not autodetect.

Compaq Presario 3.3 gHz Intel Celeron.
Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
Subsystem: Hewlett-Packard Company Device 2a4f
Flags: bus master, slow devsel, latency 64, IRQ 16
Memory at ff6f4000 (64-bit, non-prefetchable) [size=16K]

Let me scrounge around my CD's to see if I have a back level Intrepid, re-install, and then DO NOT UPGRADE!

Jerry