Yes, the enable sounds box is checked and the checkbox to use internal beeps and when i type /beep it does beep. Here's the code I'm using just in case I'm doing something wrong :

On ^*:snotice:& & & did a /whois on you.: if !$window(@whois) { window -n @whois } |
echo 9 -t @whois $1- beep haltdef}