Alert Sounds - Play Sounds Tab Not Working - No Sounds

Weather Watcher Live Chrome Extension Version - 1.0.15
Google Chrome Browser Version - 22.0.1229.26 beta-m

Bug - When setting the Alert Sound using right-clicking the Weather Watcher Live Extension on Google toolbar and choosing options I get no sound when clicking Play Sound tab. I have my Laptop volume all the way up but still no sound. I can hear other applications on my Laptop just not the Alert Sounds. There are no error messages when clicking Play Sound tab. I tried restarting my browser as well as removing the Weather Watcher Live Chrome Extension and re-installing the extension with the same outcome.