Moving servers - path issues
Couple of issues here. I've noticed that some gallery template variable values include the FQDN in the "gal_src" property, eg "http://mydomain.com/assets/components/gallery/files/xxxx.jpg"). This makes it very hard to move a MODx install using Gallery to a different domain. The other problem is the paths stored in the system_settings table. These are all absolute file system paths and there's no way to change these other than updating the DB directly.
You can update system settings through... System -> System Settings :P
There's a dropdown (default value "core") that allows you to change to different addons, you can change it from there.
That said - perhaps there should indeed a better way to update these on move, though I can't imagine anything to make that work at this moment.