Image Search error

[Rackaracka]

if $result[0]="0" then return 0
if $result^ ERROR

comes up after i have tried to run an Image Search script which failed

source code

#include <ImageSearch.au3>

global $y = 0, $x = 0

$x1=0
$y1=0

$result=_ImageSearch("start.bmp", 1, $x1, $y1, 0)
if $result = 1 then
    msgbox(0,"Result","Found!")
else
   msgbox(0,"Result","Not Found!")
endif

please help, why is this error comming up

[careca]

;===============================================================================
;
; Description:      Find the position of an image on the desktop
; Syntax:           _ImageSearchArea, _ImageSearch
; Parameter(s):
;                   $findImage - the image to locate on the desktop
;                   $tolerance - 0 for no tolerance (0-255). Needed when colors of
;                                image differ from desktop. e.g GIF
;                   $resultPosition - Set where the returned x,y location of the image is.
;                                     1 for centre of image, 0 for top left of image
;                   $x $y - Return the x and y location of the image
;
; Return Value(s):  On Success - Returns 1
;                   On Failure - Returns 0
;
; Note: Use _ImageSearch to search the entire desktop, _ImageSearchArea to specify
;       a desktop region to search
;
;===============================================================================

Experiment with tolerance, something like this works for me.

#include <ImageSearch.au3>
Local $x, $y
While 1
    If _ImageSearch(@ScriptDir&'\Capture.PNG',1, $x, $y, 10, 0)=1 Then ConsoleWrite(' - _ImageSearch - '&$x&' '&$y&' - '&@MSEC&@CRLF)
    Sleep(100)
WEnd