What is the value of lcPS and lcReportName at the time of error?

>I am getting an interminttent error when I run a report and save it to a file. Most of the time the code executes OK but sometimes generates the error, '202 Invalid path or file name' on the line, "Report form (lcReportName) To File (lcPS) Noconsole Next 1"
>
>Here is the whole form method:

>Lparameters lcReportName, lcPDFFileName, llNext1
>Local lcPDF, lcPS
>lcPDF = Addbs(Justpath(lcPDFFileName)) + Juststem(lcPDFFileName) + ".pdf"
>lcPS = Addbs(Justpath(lcPDFFileName)) + Juststem(lcPDFFileName) + ".ps"
>
>Set Printer To Name 'Adobe PDF'
>If llNext1
>	Report Form (lcReportName) To File (lcPS) Noconsole Next 1
>Else
>	Report Form (lcReportName) To File (lcPS) Noconsole
>Endif
>Set Printer To Default
>
>If File(lcPS)
>	loDist = Createobject("pdfDistiller.PDFDistiller.1")
>	lnResult = loDist.FileToPDF(lcPS,lcPDF,"")
>Endif

>I am using Adobe Acrobat 8. I have put in a wait window to check the path/filename string and it is always correct. Are there any gotcha's with this type of command? Any suggestions on other ways to do the same thing?