Audio problems when using F4 & F5. Lagging & clicking noises??

I'm experiencing some sloppy performance and weird noises when I turn up or turn down my volume on my PB using the F4 & F5 shortcut keys.
It usually takes a couple of seconds for the volume / speaker icon to come up on the screen and for the usual plop noise to sound after I have actually hit the keys. If I try and turn up or turn down the volume a few notches in one go, it often makes the problem worse and there is this awful pulsing and clicking sound while it stalls before the usual plop sounds.
Any ideas?? It hasn't always done this. I'm assuming it's a problem in the system folder or related to software and hopefully not a hardware problem.
Any suggestions would be much appreciated.
Thanks,
Dougie.

I guess the next thing to try would be to borrow another monitor and see if there is a dependancy on the monitor being used. Worst case you will have to dump the Acer for another, different display.
One other point just as something to check; are all devices plugged into a common AC power outlet? I have heard of instances where some items are plugged into one wall outlet and then other items use an outlet from a different part of the room. But behind the walls the circuits themselves can be very separate, and one may even be miswired, which can cause currents to be present on grounds running between devices in use. It may not apply here, but it's something to always be on the lookout for.

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Edited by: user2944391 on Jul 10, 2009 3:25 AM

Hello (and welcome),
You'd be best asking this question in the Oracle Text forum, here:
Text
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Audio problems when using F4 & F5. Lagging & clicking noises??

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