Take a look

http://www.youtube.com/watch?v=3nahx5kQXB4

I've been getting these for a long long time now. And it kicks out my sound. I then have to reboot my computer for the sound to come back.

If anyone can explain what these messages are, I'd appreciate it.

And I had just rebooted my computer so I wasn't running any programs.

They just APPEAR.

And as you can see for yourself, one just vanished in one second.

Very confusing.

Thanks to anyone who has experienced this and who can tell me what I need to do to correct this.

Melody