Ok, I found the solution. Doing the following will open the attachments in a new tab and prevent users from being taken away from the ticket system in order to view an attachment.Edit line 616 of include/class.thread.phpBEFORE:$str.=sprintf('<a class="Icon file no-pjax" href="%s?id=%d&h=%s" target="%s">%s</a>%s %s', $file, $attachment, $hash, $target, Format:($attachment), $size, $separator);AFTER EDIT:$str.=sprintf('<a class="Icon file no-pjax" href="%s?id=%d&h=%s" target="_blank" target="%s">%s</a>%s %s', $file, $attachment, $hash, $target, Format:($attachment), $size, $separator);