Report cannot closed

Hi Gurus

I am using Crystal Report 8.5 & VB 6.

I use LogOnserver method to connect to SQL Server 2000

CRViewer is placed on a form.

I need to disconnect connection created by the report when I am Unloading the form.

I try to use LogOffServer method, It does not work, and givin an error.

Code I use is as follows

Code:

---

    crApp.LogOnServer "PDSSQL.DLL", SERVERNAME, REPORT_DB, USERNAME, PASSWORD
                       
    Set rpt = crApp.OpenReport(sFileName)
   
    If IsTempDB Then
        rpt.Database.Tables(1).LOCATION = sTableName
    End If
   
    SetParameterValues
   
    crv.ReportSource = rpt
    crv.ViewReport
    crv.Zoom 1 'Fit width to the screen
    Me.Show

    'When Form Unloading
    Set rpt = Nothing
    crApp.LogOffServer "PDSSQL.DLL", SERVERNAME, REPORT_DB, USERNAME, PASSWORD
    Set crApp = Nothing

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Is there any one who knows about this problem.

Or Is there any solution?

Thank u for helping in Advance



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