Sound and Keyboard Illumination Keys Not Working!!!

This is very strange...
I just spent a few days in the hospital. Fortunately, one of the amenities provided was free Wi-Fi. As it turned out, many people took turns using my Powerbook while I wasn't using it myself.
Most of the people that were there visiting, are not Mac-savvy, and when I got my Powerbook back, I discovered a strange surprise.
I have no sound. But it goes further than that, because the sound keys have been completely disabled! So have the keyboard illumination keys!
The icon is grayed out, and there is a circle, with a slash through it, beneath.
Here's a pic:
http://homepage.mac.com/theconfuzed1/.Pictures/misc/no_sound.png
I can't for the life of me, figure out how to fix this!
I am running 10.5.2 on a Powerbook G$
Message was edited by: Robby Cochran

Hi,
Try this:
The little 'do not enter' symbol you see means that is turned off...
For sound, the F3 key toggles the sound on and off (but does not adjust the volume). If the sound is on, the F4 key turns the volume down, and the F5 key turns the volume up. But with this, the F3 has to be touched to be on, and that symbol will disappear... then use the F5 key (you have to keep tapping it for it to move the volume. Only tap the F3 key once to turn it on, and once to turn it off.
The keyboard is much the same way. The F8 key turns it on or off, while the F9 lowers the intensity and the F10 raises the intensity. Again, one tap on the F8 for on and another for off... with multiple taps on the F9 and F10 to decrease or increase illumination.
That same screen you saw, should be seen but with hash-marks either grey (off) or white (on)... for both. While the sound has the arching sound waves from the horn if it is on, not when it's off. The keyboard has the curved hash marks around the top.
You do have it, if that screen shows... it's just to keep tapping the F5 and the F10 to increase both so you can see/hear the effects.
Enjoy

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Sound and Keyboard Illumination Keys Not Working!!!

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