FC3 Intel on-board sound card detected on install, now no longer works

[VB]

I recently installed FC3 on my Toshiba M200 laptop. 
The integrated sound card was detected properly on
install (initial test sound played fine).  Now sound
does not work.  I have gone to every place I can think
of to modify volume but still no sound.

How can I start debugging this problem? My "Hardware
Browser" shows an "Intel Corp. 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller" using a
snd-intel8x0 driver.  Below is my 'lsmod' listing:

Module                  Size  Used by
arc4                    1857  1
ieee80211_crypt_wep     4673  1
autofs4                23493  0
sunrpc                156325  1
pcmcia                 20805  4
ipt_REJECT              6593  1
ipt_state               1857  1
ip_conntrack           40309  1 ipt_state
iptable_filter          3521  1
ip_tables              16321  3
ipt_REJECT,ipt_state,iptable_filter
nls_utf8                2113  1
ntfs                  156688  1
video                  15813  0
toshiba_acpi            5717  0
button                  6609  0
battery                 9285  0
ac                      4805  0
nvidia               3925116  12
md5                     4033  1
ipv6                  231681  6
yenta_socket           19137  0
pcmcia_core            50945  2 pcmcia,yenta_socket
uhci_hcd               31449  0
ehci_hcd               32585  0
snd_intel8x0m          18309  2
snd_intel8x0           33249  2
snd_ac97_codec         67489  2
snd_intel8x0m,snd_intel8x0
snd_pcm_oss            47989  0
snd_mixer_oss          17089  3 snd_pcm_oss
snd_pcm                93001  4
snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer              29125  1 snd_pcm
snd                    52645  11
snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore              10017  3 snd
snd_page_alloc          9541  3
snd_intel8x0m,snd_intel8x0,snd_pcm
ipw2100                76025  0
ieee80211              19525  1 ipw2100
ieee80211_crypt         6725  2
ieee80211_crypt_wep,ieee80211
e100                   39873  0
mii                     4673  1 e100
dm_snapshot            16901  0
dm_zero                 2497  0
dm_mirror              23213  2
ext3                  116297  2
jbd                    69977  1 ext3
dm_mod                 55637  6
dm_snapshot,dm_zero,dm_mirror



		
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