Roman,
After doing the steps Drew suggested, what happens if you go to System->Administration->Language Support ?
Do you have a default language?
In my case from the list of languages, English is selected, but it does not appear below, in the drop-down menu.
Additionally, did you manage to add the other language?
Roman,
After doing the steps Drew suggested, what happens if you go to System- >Administration ->Language Support ?
Do you have a default language?
In my case from the list of languages, English is selected, but it does not appear below, in the drop-down menu.
Additionally, did you manage to add the other language?