Why does my iMac keep making "shh" sounds?
Just bought a mid-2011 iMac, updated to Mountain Lion, and it keeps making "shh" and "wshh" sounds (two different sounds, that sound kind of like Minecraft sounds).
These sounds occur randomly, and are definitely coming from the speakers. Due to them sounding like Minecraft sounds, I deleted Minecraft and all of its files, but the sounds persisted.
I've checked if it's Mail, but I've turned all the sounds off and closed the program, and they keep happening.
The only large changes I've done to the system since getting it are upgrading to OS X Mountain Lion and installing 4 GB RAM (to a total of 8).
Other than muting, is there anything I can do?
iMac, OS X Mountain Lion, Mid-2011, 27''