snd_ich no longer works.

I just realized that my onboard
pcm0_at_pci0:2:7:  class=0x040100 card=0xa00c1019 chip=0x70121039 rev=0xa0 hdr=0x00
    vendor   = 'Silicon Integrated Systems (SiS)'
    device   = 'SiS7012 PCI Audio Accelerator'
    class    = multimedia
That uses snd_ich no longer works with my new world and kernel from yesterday morning but the by going back to a kernel from Sept 3, it works fine.

Is this a known issue?  Is there something that I can do to help isolate the issue?

Thanks,

ed

P.S. This is an AMD Duron
CPU: AMD Duron(tm)  (1600.06-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x681  Stepping = 1
  Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
  AMD Features=0xc0400000<AMIE,DSP,3DNow!>