This is the 3 or 4th try on installing and adding roms. I bought the pi 2 canakit off amazon. Everything works like a charm until I add a rom and reboot. Then I get a black screen, zelda music, and nothing from the keyboard or gamepad.  I first added them via usb stick using the command line and copied to the roms folder, then ssh, now plain network. I have tried commenting out hdmi_mode=2 also setting to hdmi_safe=1 but I get the same results. Any ideas?