#. Translators: the full sentence is Registration timeout of X minutes
#: src/pref_window.cpp:1006
msgid "Registration timeout of"

#: src/pref_window.cpp:1006
msgid "minutes"

Please don't split sentences like this. The comment may be helpful up to a
certain point, and that is when the sentence split makes it impossible to
combine translated sentence fragments into a meaningful translation. Then, good
comment or not, I still cannot produce a translation that will be meaningful to
the end user. This is all described in
http://developer.gnome.org/doc/tutorials/gnome-i18n/developer.html#split-sentences.

A much, much better approach is to mark a single sentence in its entirety for
translation:

msgid "Registration timeout (in minutes)"