I have a huge problem. I am not able to print any PDF that I download. the message I am getting is re Data Execution prevention. So I changed the settings so I "Turn on DEP except for thos programs that I select (and included Adobe Acrobat in the list to check to turn DEP off.). Hasn't made a difference, despite restart after restart no change. Windows is up to date, Adobe is up to date, have firewall cannot think of any other items to check. The error message is always the error re DEP. Any suggestions?