I'm trying to upgrade LUA to 2.3.1. However when I try to run 2.3.1 I got a message that i can't upgrade from version below 2.2. Hence I tried upgrading to 2.2. When I run LUAESD.exe, it ran & completes as Upgrade complete. When I start the service & opened LUA browser, it still remains with 2.1 version. Any suggestion? Or is there something I miss?