Hello, I'm having a problem. I'm not getting email notification sounds when I get an email in mail. I have tried changing the sounds. My updates are current. I'm using 10.5.4, and it used to work. I get all other sounds except the new mail sounds... Can someone help Apple Care is useless in helping me with this. I have a macbook running the same OS and everthing with the same sound, and it works just fine everytime.