No Sound

[salar101]

I have a 15" 2.4 GHz Intel Core 2 Duo Mac Book with 4 GB of rams. I just updated and right after that there is no sound. when I restart the computer I can hear the start up and before logging in when I use the volume bottons I can hear the sound but right after I log in into my computer there is no sound. I restarted few times and I dont know what else can I do ? any help??

 

[TattooedMac]

Run repair permissions

Applications>Utilities>Disk Utilities
Click on your HD in the left column and then repair permissions

EDIT: then log out and back in

Cheers

 

[salar101]

Thanks for the respond. I just did what you said and no luck
I just created new user account and sound works fine there but not in my actual administrator account
any other idea?

 

[vansmith]

If you go to System Preferences > Sound, what does it say for "Output volume"? Is the Mute box checked?

 

[salar101]

nope its not on mute. I have the snow leopard DVD if I reinstall the operating system would I loose everything ?

 

[Slydude]

That answers one of Van's questions. The sound isn't muted but what is the output set to? Try making sure that it is set to Internal speakers/Built In Output. If it is already set there try setting it to something else for a moment.

 

[toMACsh]

I have the snow leopard DVD if I reinstall the operating system would I loose everything ?

No. To be extra "safe" select Archive and Install.

 

[vansmith]

No. To be extra "safe" select Archive and Install.

You would lose all of your data if you wiped the drive clean and then installed. If you reinstall, make a backup of all of your data first.

Let's not get hasty though - reformatting is a drastic solution to what is a small problem. Did you check what Slydude suggested?

 

[Lex]

Maybe it's your browser settings. Did you try playing sound in iTunes etc? If so then you should read this threat: http://forums.macrumors.com/showthread.php?t=232084
it covers a lot on sound problems. Maybe that helps.

-Lex