how to get audio going out in skype

[gardenia bliss]

i finally got ubuntu super os successfully
installed on my toshiba intel dual core
ati audio card laptop.  i want to get my
voice going out.  sometimes i can hear
the skype test call speaking, and then
there is no audible recording of me
speaking.  i use the audio recorder and
i can record and save an audible
recording.  i need clear specific help
for fixing this.  thanks.
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