Quoting Den Jean <Den.Jean at telenet.be>: > Strange, I tested both "X" button and Form.Close. Both work as expected: > when CanClose false -> app does not close. > Please try again. > There was type in my last post: I said that I've recompiled Qt-4.3.0 with -no-stl, but it is -no-sse2 (or -no-sse). zeljko