Have you noticed any problems with a rdc session not 'releasing' the speaker
back to the local machine. When I connect to a rdc session i get system
beeps, and sound etc. when i go back to the local machine, silence. none of
the volume sliders seem to make any difference.....

You may not have noticed because you have muted your system sound...

It does it on my laptop and my desktop, reconnecting and disconectting, some
times fixes it on the laptop but , I still not managed to get the desktop to
squawk again.