Fix release-0.4.1: Config.Video.VideoPreview is ignored (fixes #391)

VocaluxeLib/Menu/SongMenu/CSongMenuList.cs

@@ -541,7 +541,9 @@ namespace VocaluxeLib.Menu.SongMenu
             }
             _TextBG.Draw();
 
-            CTextureRef vidtex = CBase.BackgroundMusic.IsPlayingPreview() ? CBase.BackgroundMusic.GetVideoTexture() : null;
+            CTextureRef vidtex = null;
+            if (CBase.Config.GetVideoPreview() == EOffOn.TR_CONFIG_ON)
+                vidtex = (CBase.BackgroundMusic.IsPlayingPreview() ? CBase.BackgroundMusic.GetVideoTexture() : null);
 
             if (vidtex != null)
             {
@@ -683,4 +685,4 @@ namespace VocaluxeLib.Menu.SongMenu
             base.LoadSkin();
         }
     }
-}
+}