Hi,
I have setup my site and made the default language as Tamil in wp-config file.
The translation works great. But if a user wants to switch back to English, there is no English option to select in the language drop down. Even if the user selects Default, it will still display Tamil, since that is the default one.
There is a workaround, currently that you select a non *.mo file. Any file. Selecting any file other than a *.mo makes the WPMU revert back to English.
But is this efficient? Is there a proper way to do this?