I reset the template to the way you had it as that did not seem to work.
I tried all I know how to do, unfortunately this may be a browser issue, maybe Fillip H. has something else to try. I did all this:
If you are having problems with sound, please follow this check-list:
1) Did you select a sound to be played in the Instance Manager?
AdminCP -> DBTech - vBShout -> Instance Management -> [Edit] -> Shout Sound / Invite Sound / PM Sound
YES
2) Are sounds turned on?
AdminCP -> DBTech - vBShout -> Settings -> Enable Sounds
YES
3) !!!Pro Only!!! Are sounds turned on in the UserCP?
UserCP -> Shoutbox -> Shoutbox Settings -> Shout Sounds / Invite Sounds / PM Sounds
YES
4) Is the
QuickTime browser plugin installed?
QuickTime Plugin- Please note that you need to restart your browser after installing the plugin.
5) Does it work in other browsers?
If you only have one browser on your computer (Internet Explorer) you should try out
Firefox.
NONE
6) Is the following text present in the source of the page:
<embed ?
Right click -> View Source -> Ctrl+F -> <embed
NO
If this is not found, and all the above steps are completed, then you may have an out of date template. Please revert any customisations to
dbtech_vbshout_shoutbox TRIED
If none of the above steps fix it for you, then it's a browser issue that we are unfortunately unable to assist with.