Load with Inputfield fields ...error

[#1]

I got a very bad error. I want to load a table not just one but more time from a qvd by adding a counter for each load ad an input field.

In the old version of qlikview I was able to do that but with the qlikview 10 sr3 version it's seems that it doesn't work.

This is the error:

Duplicate keys when loading Input Field

This an example of a script:

Inputfield Input

ANALISI_PROVA:

LOAD

'0' as  Input,         //also with a interno() as Input I get the same error

Iterno() as KEY_2

FROM  ANALISI2.QVW (qvd)            

WHILE Iterno()<=$(x);

[#2]

Is it the reason that now I cannot read inputfields more times but just one from a table?

[#3]

I am sorry it's a qvd the file not a qvw to load