Perhaps you have German set for your language on the forum? The image URL seems to indicate a language-specific icon. When I go to the URL for the image, I get this 404:
Not Found
The requested URL /Themes/clear_mind-v2/images/english_british-utf8/new.gif was not found on this server.
Apache/2.2.16 (Debian) Server at forum.battlemaster.org Port 80