I got the same problem of blank previews. However, when I add the testing provider, there is a new available plugin named DrL, but whenever I want to install it, a message displays saying that "Networking problem in http://gephi.org/updates/testing/org-gephi-layout-plugin-drl.nbm"
I got the same problem of blank previews. However, when I add the testing provider, there is a new available plugin named DrL, but whenever I want to install it, a message displays saying that "Networking problem in http:// gephi.org/ updates/ testing/ org-gephi- layout- plugin- drl.nbm"