Caps lock flashing and black screen appeared using Ubuntu 12.04 (READ ALL)

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http://askubuntu.com – I have a lot of problems with my computer HP G60-445DX that started with a little error. Well, before this, I've used Ubuntu and Windows 7 happily in a dual-boot (65 GB for Ubuntu, 220 GB for Windows) with no problems. But 3 days ago (aprox.) my computer had a forced shutdown due to low battery state without notice and since my computer has been strange and different. First, the brightness of my computer had increased from the moment of powering on the computer, second when I try to start Windows 7 (from Grub) the computer reboots and third this new problem that appeared today: the computer fr (HowTos)