Now I'm at home again... :)

What I see! I hadn't been thinking that somebody have the same problem as my!

AmigaMancer - You asked me about file system. On MorphOS partition I'm useing SFS (but not this MOS version, but older). If you will see that the version of SFS that You instaled solve our problem, tell me please.

You ask me too about PPC native application on clasic AmigaOS. On my machine all of them works stable always and never caused freezes.

Maybe the problem is in this "interrupt handling" as Futaura said. Unfortunately I'm not a specialist in this things... What other MorphOS users think about Futaura words???