Please Help!!!!

I have a command button on a form "Print Case Report" that won't print
the report. It appears to go to the printer as I can see momenentarily the
little "printing pages 1-6", but then noting prints out. It will print if I
open it in print preview and right click on it and then click on print. I
don't understand this. Another on of my reports prints just fine with the cmd
button on the form. I have the app deployed over Citrix and I get the message
"You must install a printer." An aside, is it possible to embed a print
command in the preview view's report bar where the report caption shows
up?Any help is greatly appreciated. Here's the code behind the button.
Thanks, Rob

Private Sub cmdPrintCaseReport_Click()
On Error GoTo Err_cmdPrintCaseReport_Click

Dim stDocName As String

stDocName = "rptCaseReport"
DoCmd.OpenReport stDocName, acNormal

Exit_cmdPrintCaseReport_Click:
Exit Sub

Err_cmdPrintCaseReport_Click:
MsgBox Err.Description
Resume Exit_cmdPrintCaseReport_Click

End Sub