June 12, 2012
If you are having trouble viewing any PDFs try disabling PDF/A mode. This usually fixes any issues with viewing documents.
Open Adobe Reader 9 (Start > All Programs > Adobe Reader 9)
Click on Edit > Preferences.
In the Preferences window, click on the “Documents” category on the left side category listing.
Change the PDF/A View Mode drop down menu from “Only for PDF/A documents” to “Never”.