Hi,I am running Acrobat 9 Pro with the latest Enfocus Pitstop. Strange thing I opened up a pdf and it said "you are viewing this document in PDF/A mode. Now for some reason my pitstop toolbar is greyed out and unusuable. Even when i click on the blue tab. Now my Prefs in Acrobat Documents indicate "View documents in PDF/A mode (only pdf documents). Now if I change it to never, I can edit it. I realize pdf/a is archival but if I change my pref to never will I run into problems further down the line with editing or viewing pdfs in Acrobat 9.Funny thing...I opened it up in Acrobat CS3 and could edit it right away.Any ideas would be appreciated.