2012/1/20 martin rudalics <rudalics@gmx.at>

> > Effectively the issue is only windmove.el related.
>
> So IIUC the issue is that `windmove-reference-loc'
>
>          (windmove-coord-add
>             top-left
>             (let ((col-row
>                    (posn-col-row
>                     (posn-at-point (window-point window) window))))
>               (cons (- (car col-row) (window-hscroll window))
>                     (cdr col-row)))))))))
>
> wrongly subtracts the value returned by `window-hscroll' from a column
> value correctly calculated by `posn-at-point' (window_box_left_offset)?
>
> Yes, you're perfectly right that's my point and my patch remove this.
Thanks.

It's time to friday beer evening now :)