Reading PDF files in an ARCHOS 7

[ngembo]

I do not have any trouble opening and reading the PDF files from the survival phrases course in the ARCHOS 7 but I cannot open the pdf file from the newbie course. I have the same problem with the PDF files of the beginner course. I do not really understand why since I can open and read other PDF files.

P.S. I can open and read the newbie and beginner PDF files in my computer without any trouble ...