Hi Bruce, Giuliana, There have been a couple other reports like this, but they always seem to go away eventually. I doubt the firewall is an issue (if you can download a zip file from a web page on your computer, the updater will work.. if you can't download a zip file, the updater should let you know this). I've just added a FAQ entry about this: http://cars9.uchicago.edu/cgi-bin/ifeffit/faqwiz?req=show&file=faq02.008.htp The upshot is that I'd suggest replacing the file C:\Program Files\Ifeffit\updates\updater.ini with http://cars9.uchicago.edu/ifeffit/updates/updater.ini and editing (notepad,wordpad,...) and the file C:\Program Files\Ifeffit\updates\updater.dat to read '005'. (Just three numbers, on one line). Then, re-running athena, artemis, etc should immediately tell you that there are updates available, and download and install them. If you have problems, please note whether a) ifup_006.zip gets downloaded (the progress bar in the lower right corner of the updater GUI should shows the download progress). b) whether the main GUI panel lists any files being unpacked. Hope that helps, --Matt