When you have both headers enabled and line numbers enabled it will count the header as part of the line numbers, this can be a issue if you are comparing with another copy of the file you might have open with a text editor and you are trying to jump to various lines.
When you have both headers enabled and line numbers enabled it will count the header as part of the line numbers, this can be a issue if you are comparing with another copy of the file you might have open with a text editor and you are trying to jump to various lines.