Comment 8 for bug 282906

I can also confirm this. In my Sound Preferences, I have "Play alerts and sound effects" unchecked, as well as "Play alert sound". Subsequently, the rest of the options are grayed out. None of the other system sounds play (as expected). However, I still get the system beep on shutdown.

I realize that there are a number of workarounds (blacklist the driver, or apparently check the setting in gconf), but neither of these are really options for the casual user. There should be a simple setting in the gnome-sound-properties like there was in Hardy. And if somehow things changed from Hardy -> Intrepid, the previous setting should be migrated and honored.