No Sound on Mac OS X Yosemite 2008 Lap top

[cameronnoel]

Permissions says
Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent” has been modified and will not be repaired.

System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent
Says
The application “ARDAgent.app” is not open anymore.

 

[MightyApple]

I don't think that there is a way to fix this manually. If the problem is just the sound, try backing up the Mac on an external drive, and restore it. Then, load the backup from the external drive and you should be fine.

Cheers!