At boot wait for Grub menu
1. Press “a“
2. Choose the second line
kernel /vmlinuz-2.6.9-1.667 ro root=LABEL=/
3. Add acpi=on rhgb quiet 3 at the end
kernel /vmlinuz-2.6.9-1.667 ro root=LABEL=/ acpi=on rhgb quiet 3
4. After edit… press “b” to reboot
5. then youre done … ^_^
