In the Beamdog install, the .ini is located in C:\Users\[You]\Documents\Baldur's Gate - Enhanced Edition, not in the actual installation directory. Have you checked there?
I don't have the steam version, so I couldn't tell you for sure, but I do know that steam games typically create a directory under /Program Files (x86)/Steam/SteamApps/Common/ So try checking in there if none of the other suggestions in this thread work
Actually, for the Steam version it will probably be in Documents\Games\Baldur's Gate Enhanced Edition.
Steam likes to keep its games separate.
Not in this case. Its in Documents\Baldur's Gate Enhanced Edition. Both the BeamDog and Steam version store your saves, baldur.ini, +whatever else goes in there in that same location.
Comments
Steam likes to keep its games separate.
/Program Files (x86)/Steam/SteamApps/Common/
So try checking in there if none of the other suggestions in this thread work