new 12.04 install grub hangs on first boot

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http://askubuntu.com – On a new computer build, I installed 12.04 Desktop 64bit from a usb stick. When I rebooted, it hangs. It writes "Grub" on the upper left and then nothing else. The bios setup program has boot options for "efi: [hard drive id]" and "[hard drive id]". They both result in a hung boot. Any ideas on why its hanging and how I should change it? Details... During the install I removed the old hard disk partitions and created the following partitions. 40GB ext4 used for ubuntu 12.04 root 40GB empty (I plan to install windows 7 later) 4GB swap 80GB fat32 (for data accessible from ubuntu and windows (HowTos)