I searched around for solutions to this but so far not having any luck. Long story short I got through what I thought was a successful bootcamp install session of windows 7 on a thumb drive. It did its thing and then went to restart and went to a whit screen with the os x boot up chime and there was a second or so of white screen. Then it went to a black screen with a second of scrolling commands as if it were working then nothing. Just black screen and scrolling text. Same thing every time I restart and I can't even get back into os x or recovery because it does not respond to holding down option key or command r or anything... Not sure what my options are besides an apple store appt.