Bootcamp win7 boot into black screen with cursor and can't boot into Mac os.
After I installed my Windows 7 on bootcamp and tried to boot it, I get a black screen and blinking cursor which goes on forever. How to I boot into my Win7? (and when I try to option-boot into my Mac os, it is ignored and I go back into Windows)
Mac Pro, OS X Mountain Lion (10.8.4)
