Many users of the Danish Archives Online (AO) have encountered this problem. The reason behind the problems is that AO uses the TIFF picture format for scanned documents. This file format (often used for archiving purposes) was never meant to be viewed in an internet browser, and most browsers does not support this format. Accordingly AO has created a (rudimentary) Java application (LAView)that downloads to the users PC and enables browsing, copying and printing of the documents.
Whether your PC will allow this Java application to run locally or not depends on version/settings in the operating system, the Internet browser, the anti virus programme, the firewall, the local router and the actual Java version on your PC. I wouldn’t even try to calculate the no. of bad combinations possible.
On most updated systems the security settings for Java are so tight (for many good reasons) that the AO viewer will not be allowed to start.
Basically you must ensure that this specific Java app gets the necessary rights to run locally. If you don’t know to do that yourself the best answer would be: get some support from a trusted “nerd” – family or friend.
And this problem is by the way not caused directly by the redesigned AO site. More likely you are struck by recent updates of your AV/firewall and/or browser and/or Java .
NB: One error that could be introduced during a Java update is that file associations may be lost.
jnlp and aspx files must be associated with javaws.exe (the JavaWebStart program).