The problem is solved.
I reenabled PulseAudio.
I changed my /etc/modprobe.conf from this
alias sound-slot-0 snd_ice1712
alias sound-slot-1 snd_ice1712
alias sound-slot-2 snd_ens1371
to this
alias sound-slot-0 snd_ens1371
alias sound-slot-1 snd_ice1712
alias sound-slot-2 snd_ice1712
Then I rebooted. After the machine was back up, Amarok worked
with PulseAudio enabled. Audacity 1.3.11 shows only ALSA in its
host type list. For playback I chose the ENS1371 card, which is
now my default. For recording, I could only choose "default", so
that's what I chose. Edits in that dialog do not cause crashing
when okayed. Audacity records just fine now. What's more, when
I do a mic check for of Audacity's input, I hear the output on
my speakers. My ENS1371 card has never been that full duplex
before. Maybe I should credit PulseAudio with that behavior?
Anyway, everything works and I believe the main cause of that
was reordering my sound devices in /etc/modprobe.conf which now
agrees with the order I had before I upgraded my distribution
from Mandriva 2007.0 to Mandriva 2010.0.
I hope this info helps the next person to face a similar
challenge.
Cheerio....
--
Kevin