We have VW9.5.2, W2000, Adobe 6, and was having the same problem with text. I had set the dpi up to 1200. Set it back to 300dpi, and it was a go!
Reminder: to check the printer dpi in -
print setup / adobe pdf-properties / paper quality - advanced button.
Make sure that is set to 300dpi, if like me, you had gone in and upped it to 1200