Installation stuck on first screen, after loading walpaper, top panel and aome icons.

[xp15]

My ubuntu 12.04 install stuck while starting the installation. it loads the wallpaper and top panel with like two icons and than stuck (can't click on the icons).

Only the mouse is working.

Thanks.

[xp15]

please someone (:

[xp15]

any suggestion?

[xp15]

if my description lack of information, what should i add?

[xp15]

please any suggstion? any command? recovery console?