subj:
http://clip2net.com/clip/m46368/1383518768-clip-39kb.png?nocache=1
…and in widgetUserCountryMapvisitorMap:
http://clip2net.com/clip/m46368/1383520329-clip-114kb.png?nocache=1
Thanks for the report.
I fixed the “Maps” missing string in Fix missing i18n reported in http://forum.piwik.org/read.php?2,107293 · matomo-org/matomo@3ea0878 · GitHub
the other string it is not possible to translate yet.