Troubleshooting Yugma v3

I have been using Yugma for a while but recently had some problem, like many other, when upgrading to Yugma v3. My understanding is that when you go to the Yugma home page and click on start a session, the site checks through an applet if you have Yugma already installed:

• If Yugma is installed, it starts it.
• Otherwise it asks you to download the Yugma installer.

Somehow my machine must have been stuck between the two, with the applet thinking that Yugma was installed, but then failing to run Yugma. Symptoms for this are errors like "Application cannot run without client.properties file" or "Error number 1". Here is what I did to install Yugma on my Mac:

1. Download Yugma SE. This is still based on Yugma v2, and installs just fine.
2. Start Yuma SE, login into Yugma, make sure that everything works as expected.
   
3. Download the Yugma Mac Installer. (Thanks Erik for the link!) (If you are on Windows, you need the Yugma Windows Installer instead.)
   
4. Run the installer. At the end it will complain about a missing client.properties. Acknowledge; this will exit Yugma.
5. Copy the file /Applications/YugmaSE/properties/client.properties to /Applications/Yugma/properties.
6. Now start /Applications/Yugma.app. If everything works, you're back in business!