Error rendering list - System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Exception: GetMediaListControl failed ---> System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at System.ThrowHelper.ThrowArgumentOutOfRangeException()
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at medialibrary.biz.Playlist..ctor(List`1 mediaList, QualityType quality) in C:\_projects\medialibrary\trunk\medialibrary.biz\Playlist.cs:line 42
   at medialibrary.biz.PlaylistManager..ctor(List`1 list, QualityType quality) in C:\_projects\medialibrary\trunk\medialibrary.biz\PlaylistManager.cs:line 24
   at medialibrary.biz.PlaylistManager.GetPlayAllXml(Guid apiKey, Guid userId, Int32 categoryId, MediaType type, QualityType qualityType) in C:\_projects\medialibrary\trunk\medialibrary.biz\PlaylistManager.cs:line 90
   at Media.GetPlayAllListControl(Guid apiKey, Guid collectionGuid, Guid userId, Int32 categoryId, MediaType mediaType, QualityType qualityType, Boolean isIphone)
   --- End of inner exception stack trace ---
   at Media.GetPlayAllListControl(Guid apiKey, Guid collectionGuid, Guid userId, Int32 categoryId, MediaType mediaType, QualityType qualityType, Boolean isIphone)
   --- End of inner exception stack trace ---<br>   at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
   at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
   at MediaService.Media.GetPlayAllListControl(Guid apiKey, Guid collectionGuid, Guid userId, Int32 categoryId, MediaType mediaType, QualityType qualityType, Boolean isIphone)
   at embed_getlistbyuser.Page_Load(Object sender, EventArgs e)