If you receive the following error "Document Access Denied. You have already registered your quota of machines", this means that you have reached your limit of the number of unique machines that you are allowed (currently set to six machines).
Sometimes, by uninstalling and re-installing the FileOpen plug-in, it will treat your machine as a new instance, thereby utilizing one of your available machine instances.
Please note that opening courseware in numerous browsers (Internet Explorer, Google Chrome, Safari, Firefox, etc.) will contribute to a DRM account's machine count (which is a maximum of six machines before it must be reset).
When your quota of six machines has been reached, please send an email to ni.learningservices@nokia.com to request any machines be removed.