Crystal Report Ask For Log in information

hi guys ,
i designed my crystal Report and Make my stored procedure as it is data Source and link it to be showed in WPF Form this is the used code

ReportDocument rptdc = new ReportDocument();
CrystalReportViewer rptViewer = new CrystalReportViewer();
  string Str_FullPath; // the path of the report
  rptdc.Load(this.FullPath);
  rptdc.SetDatabaseLogon(Cls_Utility.UserName, Cls_Utility.PassWord, Cls_Utility.ServerName, Cls_Utility.DataBaseName);
  rptViewer.ReportSource = rptdc;
  this.reportviewer.Child = rptViewer;

we are a team of three Members it work fine on their PC Except Me Gives me a log in window to enter log in information how can i solve this problem ?

thanks in advanced

Tags: C# (C# 4.0), Visual Studio (Visual Studio 2010), WPF, SQL Server, SQL Server 2008, CrystalReports