Malformed PDFs

Great module, but it does not create readable PDFs for me.

What I have done so far...
Using drupal 4.6.5
Installed pdfview.module (1.18) in modules/pdfview and turned it on
Installed html2fpdf (3.0.2beta3) to modules/pdfview/html2fpdf

Don't think I need anything else (do I?).

Creates a OK looking PDF (when viewed in text editor) excepting the following error on first line:

<code>warning: array_merge() [<a href='function.array-merge'>function.array-merge</a>]: Argument #1 is not an array in /home/si/cavusproject.org/includes/menu.inc on line 351.warning: Missing argument 1 for pdfview_page() in /home/si/cavusproject.org/modules/pdfview/pdfview.module on line 103.%PDF-1.3

It indicates there is some error before producing the PDF as there is no EOF in the resulting PDF as well.

PDF is attached.

Any ideas what I might be doing wrong, or what I might do to remedy? Thanx.