Sure, and thanks vt, look:
When you publish a IP form to sharepoint library, you need run a wizard publishing from IP. One of the steps of this process is identfy what fields do you want to see on sharepoint views and in this same step(a window selection) after you select the field you need specify the fuction to use to publish for repeating data.
this fuction can be: First,Count,Merge,etc.
When you select Merge then repeating data items will be see on sharepoint (all items) but if you select First for example then you only see the first item.
the problem here is, if you choose Merge and on the repeating data only we have one item then sharepoint must show one item, but it does not happen, sharepoint shows twice the same item.
I been searching why? and is because the IP xml have a diffgram format and this format holds two versions of dataset and for this reason sharepoint shows twice the data. Thats is the problem.
Fred Darwin Villareal