Not translated strings

I used the Drupal 6 translation templates from http://drupal.org/project/drupal-pot to update my Swedish translation project by using poEdit for Windows. I have translated all strings, but when I used them on a clean install of Drupal 6.1 with a clean database these strings are not translated:

* "Empty string not translated" - /batch?op=start&id=4 (have no idea where it belongs to)
* Provides a web interface and an API to extract translatable text from the sources of... - /admin/build/modules
* An HTTP error @status occurred. \n@uri - misc/drupal.js
* An error occurred. \n@uri\n(no information available). - misc/drupal.js
* An error occurred. \n@uri\n@text - misc/drupal.js
* create book content - /admin/user
* create page content - /admin/user
* create story content - /admin/user
* delete any book content - /admin/user
* delete any page content - /admin/user
* delete any story content - /admin/user
* delete own page content - /admin/user
* delete own book content - /admin/user
* delete own story content - /admin/user
* delete revisions - /admin/user
* edit any book content - /admin/user
* edit any page content - /admin/user
* edit any story content - /admin/user
* edit own book content - /admin/user
* edit own page content - /admin/user
* edit own story content - /admin/user

These show up in Swedish as not translated, but the corresponding strings can't be found:
* Story - /admin/content
* Blog entry - /admin/content
* Forum Topic - /admin/content
* A story, similar in form to a page, is ideal for creating and... - /node/add
* A poll is a question with a set of possible responses. A poll... - /node/add
* A page, similar in form to a story, is a simple method for... - /node/add
* A blog entry is a single post to an online journal, or blog. - /node/add
* A forum topic is the initial post to a new discussion thread within a forum. - /node/add
* Poll - /admin/content
* Page - /admin/content
* Other - /admin/build/modules

I also tried the Dutch, Hungarian and Norwegian translation in case I made some mistake, but with the same result. I even tried my translation on a clean install of Drupal 6.0, but these strings still shows up as not translated.

Regards
/Magnus