today I found Gephi and I am looking forward to using it with some neo4j databases. So I downlaoded gephi and installed it on a windows 7 machine. I activated the neo4j plugin just like in the video (https://gephi.org/plugins/neo4j-graph-database-support/) and tried to fully import one database, but nothing happened after selecting the folder and pressing "open". So I tried another very small one and got the same behavior... Also the same behavior resulted, when I tried traversal import. Interestingly when I created two nodes within gephi, connected them and exported this by the neo4j plugin, I was able to import that database.
The neo4j databases were created by neo4j.rb by Andreas Ronge with ruby. Maybe the resulting format is not readable by Gephi? Someone has an idea?

It would be great, if someone can help me. Thank you.