With Kevin’s posts about a firewall setting that prevented the internet check from working in the plugin, I have recoded the check to simply look for a response from the online gallery. If the response is received, the computer is deemed connected to the internet. Download the new install file here. I suggest that you uninstall the previous version first.
Having fixed a bug with the help of Quirin in the forums, I’m releasing Publish On Gallery 3 as a “1.0″ piece of software. The bug fix was to deal with some different URL rewriting conditions that were causing a connection attempt to fail. The method proposed by Quirin was much more general and should work for more rewriting rules.