@Didier: GDM shows correctly. After login desktop icons are shown after that panel and dock are shown but immediately after that the UI got frozen. As I descripted some comments above looks like there's a wrong UI refresh because mouse pointer changes his shape when over a window border (look @ post #7 for a better description)
@Didier: GDM shows correctly. After login desktop icons are shown after that panel and dock are shown but immediately after that the UI got frozen. As I descripted some comments above looks like there's a wrong UI refresh because mouse pointer changes his shape when over a window border (look @ post #7 for a better description)