That is a Toshiba application doing that and not Outlook. Use Add/Remove
Programs to uninstall it.

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Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more
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> How do I turn off the "You've Got Mail" voice notification in Outlook
> 2003? I
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> had to wipe out my hard drive and reconfigure my computer, and now I can't
> shut off the annoying "you've got mail" voice notification. HELP!