ISight/new intel mini mic problem

Hi,
I've got an iSight camera that I've been using on a just retired eMac. I just purchased a new intel mini and I've been trying to set up ichat. However, the microphone won't work at all on the new computer. The video seems to be ok but no sound.
So far I've:
Checked all settings in System Preferences > sound
Checked all settings in iChat > Preferences > microphone
Started and quit GarageBand
Under the sound control panel, the input level meter doesn't respond on my mini when the iSight mic input is selected. However, when plugging the camera back into my emac, the sound seems to be fine and responds accordingly. When I start a video chat, the connection doctor shows great video stats but 0% audio transmission to the person with whom I'm chatting. Likewise, the ichat preview input meter doesn't show that the mic is functioning correctly.
It seems that this must be related to an audio issue on my mac mini in some way but I'm out of ideas right now. I'm especially bothered that the system preferences line in seems to be buggered.
What next folks? Maybe the next thing is to call for service?
Thanks,
Cory

Hi,
I've poured over Ralph's advice and web pages prior to posting my first inquiry but still haven't had any success.
Is there a way to conclusively isolate the problem to the mini and the sound input? I tested the mic on the emac again and the isight works just as it should. Audio and video, both. I've checked that all of the settings between the emac and mini are the same, including all isight prefs and sound prefs. However, the mini seems to not pick up any input from the isight microphone.
Thanks,
Cory

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Hello,
Screen burn in, 2 displays in a couple of months, I
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Well, the local dealer was quite surprised to see it as well. But, he came to my house, and hooked-up another monitor to make sure that it wasn't a video circuitry problem. And, concluded that it was definitely etched into the LCD panel.
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The iMac G5 seems to have suffered more from the combination of a stationary image and intensive (extremely hard work).
I found that if the temperature was high, that the screen would burn-in very quickly. Even on a brand-new panel.
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The temps on the computer would rise to a nice cooking state (heat radiating at you).
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I tried Apple's solutions:
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