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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3)
Gecko/20040922

Description of problem:
Redhat's Bluecurve theme fails to show a different icon for the volume
indicating the sound is muted.

Version-Release number of selected component (if applicable):
0.96-2

How reproducible:
Always

Steps to Reproduce:
1. Start up a Fedora Core system and log in with a user using the
Bluecurve theme.
2. Place a volume control on a toolbar if one isn't there already. 
Note that the icon looks like a speaker with possibly some blue arcs
coming from the speaker.
3. Mute the audio.
4. Note that the icon for the speaker + blue arcs does not change. 
The sound is indeed muted, but there is no icon change to signal this
significant event.

Expected Results:  I should have seen a symbol clearly indicating the
sound was muted.  I believe a universal "NO" symbol (a red circle with
a red slash through the circle) over the entire extant logo would work.

Additional info: