Looping wont stop

[laura]

Hi,
I have 3 values in a datasheet, with my code the datasheet keeps going on after the 3rd iteration which makes it fail.
Can anyone please help as the code actually works for other sections of the script.
My code is -

Code:

rc =datatable.getrowcount
for i =1 to rc
datatable.setcurrentrow i

------

Next

Can anyone tell me what is going on please.and i have set the File settings to 'run one iteration'

Thanks