Some small (technical) corrections:
[ContactPopupMenu]
original: ContactInfo=&Informasjon om konta
kt ...
fixed: ContactInfo=&Informasjon om kontakt...
[PrefDlg.MsgQuickTexts]
original: MessageTip=Hvis du vil spesifisere flere enn én melding eller komman
do , starter du en ny linje..............................
fixed: MessageTip=Hvis du vil spesifisere flere enn én melding eller kommando, starter du en ny linje..............................
[Dialog.Preferences]
This is too long:
ListHelpers=Meldingshjelpere
If you select it in the preferences then it becomes bold and thus it will not fit anymore in the box... But because this is 1 word, I assume it will be hard to replace/change it...
PS: Indeed, the use of points is sometimes a bit too much 
PSS: Removed your language from the "mistake"-overview in http://shoutbox.menthix.net/showthread.php?tid=25594
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