Crystal Reports only display if I dont pass parameters

[NBartomeli]

I have been successful in getting Crystal Reports to display in a web application when they do not require parameters.

As soon as I try to set a parameter value in the report I recieve an error: "Unable to connect: incorrect log on parameters. "

Stack Trace: 


[LogOnException: Error in File C:\DOCUME~1\MPINAB\ASPNET\LOCALS~1\Temp\temp_18e3cfc6-e324-4765-af16-40ef849ebdab.rpt:
Unable to connect: incorrect log on parameters.]
   .L(String , EngineExceptionErrorID )
   .G(Int16 
, Int32 )
   .F(Int16 )
   CrystalDecisions.CrystalReports.Engine.FormatEngine.GetPage(PageRequestContext reqContext)
   CrystalDecisions.ReportSource.LocalReportSourceBase.GetPage(PageRequestContext pageReqContext)
   CrystalDecisions.Web.ReportAgent.{(Boolean C)
   CrystalDecisions.Web.CrystalReportViewer.OnPreRender(EventArgs e)
   System.Web.UI.Control.PreRenderRecursiveInternal()
   System.Web.UI.Control.PreRenderRecursiveInternal()
   System.Web.UI.Control.PreRenderRecursiveInternal()
   System.Web.UI.Page.ProcessRequestMain()

this is my code:

Dim r As New MPI_AUDIT_REPORT  'MPI_AUDIT_REPORT is a crystal report embedded in the project
r.SetParameterValue(0, 115010)
crViewer.ReportSource = r

if I comment out the line "r.SetParameterValue..." the report shows with default values no problem

Can anyone point me in the right direction?