Turn off sounds in AIM
If you’re using AOL Instant Messenger (or a similar IM program) in an office setting, be respectful of your co-workers and disable the notification sounds. Those noises can be really distracting!
Here are instructions for the latest version of AIM:
AIM on PC (v7.5): Click on Options in the upper-right corner of the AIM window, choose Settings. Click on Sounds and make sure all buttons are marked “Do not play any sound”.
AIM on Mac (v2.2): Click the AIM File menu in the top-left corner of your screen, and then click Preferences. Click on Sounds and then choose “no sound” from each dropdown menu. Close the window.