hi, i'm an italian player and i just bought the game in the full edition. even with patch 2.01 I can't set the game in Italian, is it the same for you too?

Which game? Icewind Dale 1 (original)? Icewind Dale Enhanced Edition? Icewind Dale 2?

Hi, Icewind Dale 2 Complete edition

There's no way to change the language to Italian for Icewind Dale 2, although the Enhanced Edition for 1 has official support for Italian translation. You might be able to find something useful in this thread: https://www.gog.com/forum/general/giochi_in_italiano_la_rinascita/page1

I can't speak Italian, so I don't know what the post says. But it looks like it might be able to help you.