Suddenly, my media player won't burn to CD. I've received one error message that states that the CD/DVD burner cannot be located and I also get this one... "Windows Media Player encountered an unknown error. This can occur when another program or operating system component encounters a problem but does not communicate the nature of the problem to the Player." I have tried re-installing WM Player, upgrading it, and tried the system restore option with no luck. Suggestions are greatly appreciated.