TI3 requires version 2.8 of vassal because of a bug in 2.9. I downloaded and installed version 2.8 and it ran great the first time. After closing vassal and then openning it again without doing anything else I was suddenly at version 2.9.3 and TI3 didn't work right anymore. How do I install version 2.8 and keep it from updating to version 2.9?