Date inversion in InfoView but not in Desktop Intelligence

Hello,

I have developed some Deski reports and exported them into BO Server for a client.

As I know I need date input in format dd/mm/yyyy I changed the prm to match the format I want.

It looks like it works all right using Desktop Intelligence along my reports but then fails when refreshed from InfoView:

I mean having a date like 12/01/2011 works for both; having 13/01/2011 will return data only when I use my reports with Deski not from InfoView.

Why changing the prm is still not enough for InfoView ? (or did I miss something?)

Thanks for your help