Any help please!

I dont have any subreports in my reports.
Here is the code i am testing at the moment:

         CrystalDecisions.CrystalReports.Engine.ReportDocument myReport
= new CrystalDecisions.CrystalReports.Engine.ReportDocument();

            myReport.Load(@reportPath);

            Database crDatabase;

            Tables crTables;

            CrystalDecisions.CrystalReports.Engine.Table crTable;

            TableLogOnInfo crTableLogOnInfo;

            ConnectionInfo crConnectionInfo = new ConnectionInfo();

            crConnectionInfo.ServerName = INIFile.IniReadValue("Server", "Server").ToString();

            crConnectionInfo.DatabaseName = INIFile.IniReadValue("DBName", "DBName").ToString();

            crConnectionInfo.UserID = INIFile.IniReadValue("UName", "UName").ToString();

            crConnectionInfo.Password = INIFile.IniReadValue("PWord", "PWord").ToString();

            crDatabase = myReport.Database;

            crTables = crDatabase.Tables;

            for (int i = 0; i < crTables.Count; i++)

            {

                crTable = crTables;

                crTableLogOnInfo = crTable.LogOnInfo;

                crTableLogOnInfo.ConnectionInfo = crConnectionInfo;

                crTable.ApplyLogOnInfo(crTableLogOnInfo);

                crTable.Location = "" +

                crTable.Location.Substring(crTable.Location.LastIndexOf

                (".") + 1);

            }

            crystalReportViewer1.ReportSource = myReport;

I receive the following error:
Logon failed.
Details: ADO Error Code: 0x
Source: Microsoft OLE DB Provider for SQL Server
Description: [DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied.
SQL State: 08001
Native Error:

I receive this error on the following row:
for (int i = 0; i < crTables.Count; i++)
with the "i++" highlighted as the problem

Also since i tried to change the datasource at runtime, everything is working so slow. Report usually takes up to a minute to throw up an error.

Thanks

I saw this on the members-only section and to be honest, I don't have the answer for it. The only time I've seen this is when the user doesn't have rights to connect to the database. People will insist that everything is fine and the security has been setup, but then a week later will come back to report that the admin changed something and didn't realize it. But this is difficult to figure out over the forum b/c there is a lot involved in checking credentials on an other server.