My computer ASUS M5A99X Motherboard, 8GB RAM, Seagate hard drive, ASUS GeForce video card. I had 12.04 LTS 64bit loaded.
Now when I boot, it will go to the Grub screen, and then reboot, return to the grub screen and lock up. With a live DVD, it will show the pick language screen and lock up.
Any ideas? It had been operating fine.