As we agreed about the solution, could you please merge this patch ?
This bug is really annoying to me and probably to many others.

Thanks.

Jérémy

2012/1/20 Jérémy Compostella <jeremy.compostella@gmail.com>

> 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 :)
>