pdf report fails

Hello everybody,

I've got a problem with a report that hast to be exported to *.pdf
The first time it worked, but the second time it didn't. How strange is that!? :confused:

So when i click the button a new i.e. window shows up.

The first click works fine but when i want to open the report again the whole window is empty :( Somebody who know the answer??

Mycode:

VB Code:

Dim Rep As crystalDecisions.CrystalReports.Engine.ReportDocument
        Rep = New rptTest
 
        Dim tb As CrystalDecisions.CrystalReports.Engine.Table
        Dim cn As New CrystalDecisions.Shared.ConnectionInfo
 
        cn.ServerName = *******
        cn.DatabaseName = *******
        cn.UserID = ******
        cn.Password = ********
 
        Dim tblog As New CrystalDecisions.Shared.TableLogOnInfo
        For Each tb In Rep.Database.Tables
            tblog.ConnectionInfo = cn
            tb.ApplyLogOnInfo(tblog)
        Next
 
 
        Dim strStream As New System.IO.BinaryReader(Rep.ExportToStream(CrystalDecisions.[Shared].ExportFormatType.PortableDocFormat))
 
        Response.ClearContent()
        Response.ClearHeaders()
        Response.ContentType = "application/pdf"
        Response.BinaryWrite(strStream.ReadBytes(strStream.BaseStream.Length))
        Response.Flush()
        Response.Close()
        strStream.Close()

By the way, if i click again on the button for de 3rd time it works fine again. The 4th time not, the 5th time fine, 6 time not etc. :sick: