There aren't any issues that I am aware of, can you try re-entering your Proxy information? Are you able to use the online wallpaper providers (like Flickr and Vladstudio) through the proxy in DisplayFusion?

In an effort to cleanup the DisplayFusion forum, this topic is being locked and archived because it applies to an older version of DisplayFusion. If you are using the latest version of DisplayFusion and would still like some assistance, please create a new topic and I'll be happy to help you out. There are also beta versions available for testing the latest features and bug fixes:
http://www.displayfusion.com/Download/Beta/

Thanks!