====== When opening an eBook, only a white page is displayed ======

===== Corrupted Adobe Reader =====

This can happen when Adobe Reader is not fully installed on your computer or if your Adobe Reader installation is corrupted.

Solution:
  - Uninstall any Adobe Reader and Adobe Acrobat products currently installed on your computer
  - Download the latest version of Adobe Reader from www.adobe.com/products/acrobat/readstep2.html 
  - Install Adobe Reader
  - :!: Make sure that the reader is installed with the option to open documents in a Web Browser
  - :!: Please make sure you reboot every time an install or uninstall procedure requests it.  Skipping reboots can result in corrupted configurations.

===== Internet Settings =====

If the above did not fix your problem, make sure that your Internet Security settings are allowing ActiveX controls to be ran on your computer.

Solution:
  - Go to your "Control Panel" (from the Start Menu)
  - Go to "Internet Options" (from the "Network and Internet Connections" section)
  - Go to the "Security" tab
  - Make sure the "Internet" is selected 
  - Click on "Default Level" - this will reset your security settings to the Microsoft default settings.
  - Click on "OK"

===== Resetting Default PDF Viewer =====

It is possible that a PDF viewer other than Adobe Reader has been installed on your computer.

The following registry patch sets Adobe Reader as the default PDF viewer for Secure-eBook and Web Pages.

  - Download the registry patch: {{:faq:fix_adobe_reader.zip|fix_adobe_reader.zip}}
  - Extract the patch (fix_adobe_reader.reg) from the .zip archive.  Windows XP and Windows Vista can open .zip archives.
  - Double click on the patch to apply it.  You will need administrator access to your computer to apply the registry patch.
  - Close any browser Window or Secure-eBook books
  - Re-open your eBook

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