While planning to install a Linux version on a new PC dedicated to this OS, I have downloaded from the Mandrake web site the files USER.PDF and REF.PDF for study. I am reading them on my old DataTrain DPC 450 under Windows v3.1 using the Adobe Acrobat Reader v3.01 for Windows. Both are excellent, clear and informative texts, and I am learning a lot. The problem is that almost all figures are rendered only as darkish rectangles without any content. I have found no mention of this problem in Mandrake documents. Any advice welcome! Please send a copy to <[EMAIL PROTECTED]>. Greetings! Rudi Borth