This bug report is a condensed version of forum:
http://forums.atlassian.com/thread.jspa?forumID=96&threadID=14948
On my dashboard it says "Vor kurzem Aktualisiert" instead of "Recently Updated", everything else seems to be in English.
This problem was solved after I deleted de_DE-1.0.jar but this seems to be a bug, doesn't it?
My guess is it's a missing property in the specific local you selected for english, so it defaulted to your computer's locale(Germany), which seemed to have one specified.
-Global Report
-Space Details
-Space List
and also emails.