SAVEASPDF Function

I am trying to save PDF's to a directory before I email them. The code is in a codeunit called from a Page. Multiple PDF's get created in the directory with the Invoice Number in the Name. The issue is that when I open the PDF's they are all for the same invoice (SPI000000).

SalesInvHeader.RESET;
SalesInvHeader.SETRANGE(SalesInvHeader."Bill-to Customer No.",'549200');
IF SalesInvHeader.FINDSET THEN
REPEAT
Name := STRSUBSTNO('SalesInvoice_%1.pdf', SalesInvHeader."No.");
ToFile := '\\pegasus\ftproot$\Invoices\' + Name; // cifs delegation to service tier for pegasus
CLEAR(SalesInvHeader2);
SalesInvHeader2.GET(SalesInvHeader."No.");
REPORT.SAVEASPDF(REPORT::"WL Sales Invoice",ToFile,SalesInvHeader2);
UNTIL SalesInvHeader.NEXT = 0;


Directory of \\pegasus\ftproot$\Invoices after the code runs. Even though the file names are different, the pdf always contains the first invoice. I also tried running the report from a variable that I cleared first. This gave the same results.
I also tried the download function.

07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000000.pdf
07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000001.pdf
07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000002.pdf
07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000003.pdf
07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000004.pdf
07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000006.pdf
07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000007.pdf
07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000012.pdf
07/15/2011 03:50 PM 1,200,495 SalesInvoice_SPI000016.pdf
07/15/2011 03:51 PM 1,200,495 SalesInvoice_SPI000017.pdf
07/15/2011 03:51 PM 1,200,495 SalesInvoice_SPI000018.pdf

Any help would be appreciated.

Thanks