Fix nullpointer-exception and bg-music behaviour.

Vocaluxe/Base/CBackgroundMusic.cs

@@ -155,12 +155,12 @@ namespace Vocaluxe.Base
 
             foreach (string path in soundFiles)
                 _BGMusicFiles.Add(new CPlaylistElement(path));
+            _CurPlayer = _BGPlayer;
             //Set a default to have a consistent starting point, use SetMusicSource afterwards
             _MusicSource = EBackgroundMusicSource.TR_CONFIG_NO_OWN_MUSIC;
             _AddBackgroundMusic();
 
             SetMusicSource(CConfig.Config.Sound.BackgroundMusicSource);
-            _CurPlayer = _BGPlayer;
             _Initialized = true;
         }
 
@@ -178,7 +178,7 @@ namespace Vocaluxe.Base
 
         public static void Play()
         {
-            if (!IsPlayingPreview && CConfig.Config.Sound.BackgroundMusic == EBackgroundMusicOffOn.TR_CONFIG_OFF)
+            if (!IsPlayingPreview && CConfig.Config.Sound.BackgroundMusic != EBackgroundMusicOffOn.TR_CONFIG_ON)
                 return;
 
             if (IsPlayingPreview || _BGPlayer.SoundLoaded)

Vocaluxe/Screens/CScreenHighscore.cs

@@ -50,6 +50,11 @@ namespace Vocaluxe.Screens
         private int _Pos;
         private bool _IsDuet;
 
+        public override EMusicType CurrentMusicType
+        {
+            get { return CConfig.Config.Sound.BackgroundMusic == EBackgroundMusicOffOn.TR_CONFIG_OFF ? EMusicType.None : EMusicType.Preview; }
+        }
+
         public override void Init()
         {
             base.Init();

Vocaluxe/Screens/CScreenNames.cs

@@ -67,7 +67,7 @@ namespace Vocaluxe.Screens
 
         public override EMusicType CurrentMusicType
         {
-            get { return EMusicType.Preview; }
+            get { return CConfig.Config.Sound.BackgroundMusic == EBackgroundMusicOffOn.TR_CONFIG_OFF ? EMusicType.None : EMusicType.Preview; }
         }
 
         #region public methods

Vocaluxe/Screens/CScreenScore.cs

@@ -57,6 +57,11 @@ namespace Vocaluxe.Screens
         private CPoints _Points;
         private Stopwatch _Timer;
 
+        public override EMusicType CurrentMusicType
+        {
+            get { return CConfig.Config.Sound.BackgroundMusic == EBackgroundMusicOffOn.TR_CONFIG_OFF ? EMusicType.None : EMusicType.Preview; }
+        }
+
         public override void Init()
         {
             base.Init();