Fuzzy drawing in PDF

Hi,

This is how the EMF displays in the default windows viewer:
[Blockierte Grafik: http://i200.photobucket.com/albums/aa88/Thinusb/emf.jpg]

This is what the PDF looks like:
[Blockierte Grafik: http://i200.photobucket.com/albums/aa88/Thinusb/pdf.jpg]

It is a vector drawing, not text. The resolution of the PDF is set the same as the screen (96dpi) and the size of the page is 16.54x11.69in.

Any idea what is causing this?

I can upload/email the EMF (7Kb) and PDF (17Kb) if required.

The drawing is not text, it is a vector drawing, there are no fonts.

I tested this with version 3 and it seems to work fine in 3.