Here’s an important update from our team regarding the ‘Offline Website Installer':
Dear PhET Users,
If you have previously downloaded the PhET’s ‘Offline Website Installer’ from our web site and installed a full copy of the PhET website on your computer, we have some important information for you. If you haven’t, please disregard this message.
Due to some recent changes to Oracle’s Java security model (update released January 14), you may encounter problems running our simulations from your local installation if and when you update your Java version. If you run into such problems, or wish to avoid them, please download the latest update of PhET’s installer from our web site. You can find the appropriate installer for your environment here: http://phet.colorado.edu/en/get-phet/full-install. Please note that this affects only the full installation, and not individually downloaded simulations.
If you encounter any problems with this, please feel free to contact us at firstname.lastname@example.org. And, as always, thanks for being a PhET user.
The PhET Team