Setting default source and target language pairs

When I create a new Translate Single Document project, it never displays the correct Source and Target language pairs. It shows: Source = English (United States_)and Target = blank. I want it to ALWAYS default to Source = English (Canada) and Target = French (Canada). I used to have this properly configured but after implementing an upgrade, these settings got lost. The 'Open Document' window displays right after I select  Translate Single Document and select the file to translate. 

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