Losing Sound Device Settings

Every couple of weeks or so, when turning on my PowerBook, or restarting, my sound device settings are lost, and I have to restart using the reset pram rule.
I'm current on all of my updates, running 10.5.5, and my PBK is a 2005, pre-intel. Anyone have an idea why i'm losing my sound device settngs? Internal boot battery getting low perhaps?
Also, I have an odd sound issue. Every once in awhile, I'll hear a what sounds like a static pop through my external speakers. Haven't heard it as far as I can remember through the internal speakers, only when the externals are plugged in. My external speakers are Altec Lansings with a sub.
I just heard the "pop" as I'm writing this, and haven't rebooted yet, so don't have my device settings activated yet. I guess my next stop is the Altec forums!
Thanks for any help.

fivebass wrote:
Every couple of weeks or so, when turning on my PowerBook, or restarting, my sound device settings are lost, and I have to restart using the reset pram rule.
I'm current on all of my updates, running 10.5.5, and my PBK is a 2005, pre-intel. Anyone have an idea why i'm losing my sound device settngs? Internal boot battery getting low perhaps?
Also, I have an odd sound issue. Every once in awhile, I'll hear a what sounds like a static pop through my external speakers. Haven't heard it as far as I can remember through the internal speakers, only when the externals are plugged in. My external speakers are Altec Lansings with a sub.
I just heard the "pop" as I'm writing this, and haven't rebooted yet, so don't have my device settings activated yet. I guess my next stop is the Altec forums!
Thanks for any help.
My MBP always has a pop before a sound, if it has been idle for a while. This has been reported before. It seems that when the digital sound system "wakes up" it makes a pop sound. That is normal but not really acceptable.
However, the pop you hear could be something else, and could be, in fact, the sound turning off.
Run the Audio/Midi setup app and look at what the input and output options are when the sound is lost.
You can also run the Sound Preference and see similar things.
Does your notebook have a second battery for storing PRAM/NV-RAM data? I know some older units did. If so, it may be dying and you are losing your settings.

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Quote
OS: Windows XP SP3, v.3264
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