So, now I have
/language
- /en (the original British language pack)
/lang_en_us (the newly added language pack)
If I remove the existing /language/en folder, the ACP won't open. It complains that it can't find ../language/en.
If I rename "lang_en_us" to "en", then the ACP will open, but it continues to display only British English, even though that language pack no longer exists.
Can anyone shed some light on this?
Thanks.