I'm on WinXP - and my computer chimes, with the same sound as if I've received a new email, periodically for no reason.

Even when I've only got one program open (that has no sound features).

Does anyone know how I can figure out what is causing it?

Thank you.

How do you connect to the Internet? Do you keep your e-mail client running all the time? Do you check in the system tray foe a new mail notice?

Do you have any USB devices, like a printer, attached that have a power save function.
What you may be getting is an alert when it coems out of power save and reconnects

Happy Birthday to Curlyben! http://www.jackson8.com/images/amhd/thumb.gif

And for kicks, here are a few who share your day:

Louisa May Alcott 1832-1888
Christian Johann Doppler (1803 - 1853)
Sir Ambrose Fleming (1849 - 1945)
Nellie Ross (1876 - 1977)
Busby Berkeley (1895 - 1976)
C.S. Lewis (1898 - 1963)
Adam Clayton Powell Jr. (1908 - 1972)
Garry Shandling (1949 - )