Error Message When Playing From CDG

[FDH]

I Did Try To Run MTU Program File As Administrator With No Success. I Could Not Try Your Other Idea About UAC Because I Don't Know What That Is. Pardon My Lack Of Knowledge. I Stll Get "ERROR MESSAGES": WaveInvalaid Device Identifier When Trying To Play A CDG Track. I Click The OK Tab Then The Track Plays. Then When The Song Ends Another Error Message Appears Stating: WaveInRest: Invalidhandle. Wow......
Maybe If You Could Tell Me What A UAC Is Or Where To Find It And Or What To Do With It? Thanks Again.