Hi and thanks for your time
I turn on my PC and i get this message in the screen
"GNU GRUB 0.97 Minimal bash-like line editing..."
From an Ubuntu live CD i installed boot-repair utility, i tried recommended repair without success, then i created a boot info summary in order to share it and get some help. The log is in this URL http://paste.ubuntu.com/10858749/.
Thanks from now for any suggestion.