and\usepackage
{color}
The package inputenc has already been loaded with options:
[utf8x]
There has now been an attempt to load it with options
[latin9]
Adding the global options:
utf8x,latin9
to your \documentclass declaration may fix this.
Try typing <return> to proceed.
\renewenvironment{lyxgreyedout}
Try typing <return> to proceed.
If that doesn't work, type X <return> to quit.

DVI works well sith the Tutorial and the UerGuide, but not with my own files.
Please, tell me, where shall I type <enter>?