I have an XP desktop and Vista notebook. They both use the same AVG 8.5 Security Suit, IE 7 and the same Adobe Reader 8 version, with the same config options as far as I can tell. Yet, my Vista laptop has no problem displaying protected PDF financial statements from the Scottrade and Costco web sites, where the XP desktop would only display a blank in the popup window in place of the PDF document. There is no error message that would clue me in as to why this may be happening. On most other web sites I don't have this problem, though they tend to be not secure sites. I now updated the Reader on XP to the 9.1 version, but the problem
still persists. Now, I must admit that my old XP desktop is pretty underpowered
compared to my new Vista notebook; it runs an 850 MHz P3 and I noticed in
the Reader systems requirements that it wants at lest a 1.3 GHz CPU.
Could this be my problem? Why is it only a problem with proected PDF docs
and not with others? I expect the Reader to work more sluggishly with a slower
CPU but not working at all is not what I would expect. Am I wrong?