GOG Galaxy is telling me to "Connect Now" my copy of The Witcher 2, and asking for a code - this just started happening today. Thing is, I bought my game on GOG (when it first came out).

I can't access my extras anymore cause Galaxy thinks my version is retail or something.

It looks like the GOG.com replaced the AU version with the international version because I saw that my game was no longer shown as installed in the Galaxy client. The game shown in my Library differs from the currently one in the left sidebar. Notice that the one in the Library has achievements and the full title above (The Witcher 2: Assassins of Kings Enhanced Edition without the (AU)).

Ah yes, I see what you mean.

In my installed list, I have "WITCHER 2: ASSASSINS OF KINGS, THE (AU)", whereas in my GOG games list, I have "WITCHER 2: ASSASSINS OF KINGS, THE - ENHANCED EDITION".

It's kind of annoying, cause I still play The Witcher 2 arena sometimes, and will probably be doing a series playthrough soon. I want the achievements from GOG Galaxy, but I don't want to redownload the entire game (I have a download limit and The Witcher 2 takes up a pretty big chunk).