I've gone the route of update, uninstall, reinstall gradually bringing it up to a somewhat stable version since early 2000's and I've had my overwhelming share of #$#UW@#$&@#@ is wrong with this software upgrade. I say read the messages and see what is really working for the majority and then decide. For me the last version 3.314 has been ok for my needs and MyHouseOnline has been working OK - just group pane issues but that's cosmetic. Unless you are very comfortable with doing complete uninstalls, and I mean wiping out every trace of X10 and reverting to a known stable software base, then slowly doing incremental add-on installs before main AHP install and testing to see if it anything breaks in between, wait before installing the "latest" and "greatest" release till the rest of the community shakes the living daylights out of the release and reports back.
DeliBaker