I finally found it! It was in one of the functions in the file “functions.php” in the theme folder. Strange that all other parts of the comments elements are defined in comments.php, comment.php and comment-template.php etc. Took me a good while to find it. Thanks for your help!
I’m using the theme “Blank Slate” by TidyThemes.
Thank you spencerp! I swear I tried “admin” followed by my password at least 50 times! now when you mention it and I try it – it works!!! I can’t thank you enough!!