Thanks !
I didn't tried the software I was provided with the stick (v. 5.02), since it was for XP and Vista... So I can't tell if that version of the software was working or not on Win 10.
I did follow your link to the attack 3 product page and was able to download the software 5.10 for Windows 10 64 bit. It works like a charm!
Very happy that Logitech kept updating the software for Win10.