Installed Win8 on my second drive and when I bootup I get the select Win7 or Win8 screen. Win8 boots fine, but I notice when I select Win7 it almost starts loading the screen goes black and computer reboots. It then boots directly into Win7 without showing the Win7/8 menu. Is this normal? It boots fine and I can restart and boot into Win8 but each time I boot back into Win7 I I get the reboot?