Got my Everdrive MD and have been happy with it until now. I have a Sega Genesis Model 2 NTSC-U with no mods as far as I know as bought on eBay. Went to play a USA game and the picture was in black and white and lines going down so I turned the system off and tried again and still the same. After that every game was black and white with lines going down. The only way I could get it back was to put a Sonic 2 cart in then the after the Everdrive would go back to normal for a bit then go back to black and white half way through a game. I have the latest OS 35 and firmware 14.