High resolution issue with SSRS (Microsoft report viewer)

public partial class Form1 : Form  
{  
    private void Form1_Load(object sender, EventArgs e)  
    {  
        // Set the processing mode for the ReportViewer to Remote  
        reportViewer1.ProcessingMode = ProcessingMode.Remote;  

        ServerReport serverReport = reportViewer1.ServerReport;  

        // Get a reference to the default credentials  
        System.Net.ICredentials credentials =  
            System.Net.CredentialCache.DefaultCredentials;  

        // Get a reference to the report server credentials  
        ReportServerCredentials rsCredentials =  
            serverReport.ReportServerCredentials;  

        // Set the credentials for the server report  
        rsCredentials.NetworkCredentials = credentials;  

        // Set the report server URL and report path  
        serverReport.ReportServerUrl =   
            new Uri("http:// <Server Name>/reportserver");  
        serverReport.ReportPath =   
            "/AdventureWorks Sample Reports/Sales Order Detail";  

        // Create the sales order number report parameter  
        ReportParameter salesOrderNumber = new ReportParameter();  
        salesOrderNumber.Name = "SalesOrderNumber";  
        salesOrderNumber.Values.Add("SO43661");  

        // Set the report parameters for the report  
        reportViewer1.ServerReport.SetParameters(  
            new ReportParameter[] { salesOrderNumber });  

        // Refresh the report  
        reportViewer1.RefreshReport();  
    }  
}