To add serious injury to the insult already suffered from Q9, today I find out that a pdf exported from Q9.x, or even a pdf exported from Q8 for a file that has been exported down to Q8 from Q9, render color differently compared to the pdf exported from Q8 for a file with the exact same content (same image links) but which has never passed trough Q9.x. When the two pdfs are viewed side by side in Acrobat Pro 11, the difference in color if very noticeable, with the Q9.x pdf color lighter by comparison.
Al