>I cannot find "Settings"
>
>I clicked on the "Setup" icon in the upper left of the window, and from there I cannot find what you are talking about.
>
>I have always found the UT setup to be very difficult to navigate.
>

Funny, I tried to search for this option and could not find it too.

UPDATE. Ok, I found it
Audio notifications: Descriptive sound effect No sound effect Short sound effect

(it's last setting in the combobox before options start).