Finally I've made it! All Works. The error was the program - GtkTiLink - it's really bad ;) Now I'm using Wizard92 - it's great. But I have a question. What program or converter I need to download files into my calc with extension .9xz .9xs and so on ? (I suppose these are files compiled with an kind of C compiler, aren't they?) Anybody got an idea? (Sorry for this off-topic :) ) Mycroft petrich@poczta.onet.pl