I have a Lenovo ThinkPad T520. When I select to boot off of the USB drive, the underscore blinks once and then returns me to the boot selector menu.
The USB has OS 10.7.0 with Chimera 1.8.0 as the bootloader.
System Specs:
Motherboard: Intel® QM67
Processor: Intel® Core™ i7-2820QM (2.30GHz, 8MB L3, 1333MHz FSB)
Memory: 8GB DDR3 - 1333MHz (2 DIMM Slots)
Graphics: Discrete NVIDIA® NVS 4200M (1GB VRAM ) with Optimus™ Technology, Intel® Integrated HD Graphics
