PlayMusic with flag=0 (no loop) is bugged in xna

	public virtual int PlayMusic( String path,int flags ){
		if( !musicEnabled ) return -1;
		
		MediaPlayer.Stop();
		
		Song song=BBXnaGame.XnaGame().LoadSong( path );
		if( song==null ) return -1;
		
		if( (flags&1)!=0 ) MediaPlayer.IsRepeating=true; // <- BUG
		//MediaPlayer.IsRepeating=flags==1;  // <- FIX

		MediaPlayer.Play( song );
		return 0;
	}