Common symptoms when you can't view a PDF on the web are:
- A blank page in the web browser
- A red X icon
- A broken-link inidcator, such as a red square, a blue triangle, or a blue circle
- Error: "The Adobe Acrobat/Reader that is running cannot be used to view PDF files in a web browser. Adobe Acrobat/Reader version 8 or 9 is required. Please exit and try again."