| 1. On the Tools menu, click Options.|
2. Click the Other tab, and then click Advanced Options.
3. Clear the Provide feedback with sound check box.
Note: When you select or clear the Provide feedback with sound check box, the setting affects all Microsoft Office programs.
If these sounds are coming from windows (from minimizing the window) you can turn off those sounds by:
Start>Settings>Control Panel(if you have XP just go Start>Control Panel).
Then double click the Sounds or Sounds & Audio Devices
A screen should pop up that lets you change your sound scheme or create one of your own. With XP, you'll need to hit the Sounds tab in order to get to this section.
Any of the items (events) you see that have a little speaker by them currently have a sound assigned.
Click (select) one of them and click the "preview" or "play" button to hear it.
If an event has a sound and you wish it didn't, just click the event and select "none" from the "Name" or (if you're using XP) the "Sounds" drop down box (you'll find "none" is at the top of the drop box).
Hope this helps.