[jitsi-users] No sound


Hello list,

For some reason I no longer hear a tone when I receive an IM which makes Jitsi unusable for me as an IM program.
I hear a sound when I test the sound in TOOLS, OPTIONS, AUDIO
I also hear a sound at the bottom of TOOLS, OPTIONS, EVENTS with INCOMING MESSAGE highlighted.
I've tried messing with as many settings as I could find and also clicking RESTORE DEFAULTS.
Any suggestions?
Thanks in advance,