I've got Windows 7 ultimate installed on my mid 2011 mbp. It has been running with no issues for some time now. I was playing a game today, alt tabbed for a minute and when I returned there were some oddities (spacebar was acting like it was being held down) so I decided to reboot. Now everytime I reboot it brings me to the windows disk manager, and I can't get it to launch windows. No matter what option I select it just hangs on a black boot up screen. I tried rebooting and holding down option to boot into snow leopard but it's not giving me the option. Any ideas?