Yes there are Black Boxes in PDF on WinNT. Because there are some video
cards and drivers on the NT that are not compatible with PDF. Please
call Adobe Tech Support and they will give you a list for NT. Or check
the http://www.adobe.com web site. And download the tech notes. I am
sorry I do not have a better answer.

Acrobats--
Here's a strange problem I've encountered. I have a PDF file I created
with Distiller. The fonts are all Type 1. I read it fine with Exchange
and Reader on my computer (Win 95 with ATM 4.0). But my colleague (Win
NT 4.0) sees only black boxes (with Acrobat Reader) where I see text. In
fact, he tried Acrobat Reader on PDF files on the Acrobat reader CD-ROM
and also saw only black boxes, though he sees graphics OK.
I don't know where to begin (have tries unistalling/installing) to look.
Any suggestions. Thanks in advance.
- --Alex
--
D.C. Rahe -- Corporate Communications Consultant -- Web & PDF Solutions
Adobe; Acrobat, PageMill, PageMaker, FrameMaker, Premiere, PhotoShop &
Illustrator.
NetObjects Fusion. Netscape Navigator Gold. MacroMedia Director.
http://www.pacifier.com/~astro -- ++ -- mailto:dcrahe@usa.net