Hey, I was having a jam and my MM crashed half way through and the screen went all glitchy. I tried powering off and on again but the screen is still like it. I have tried it in 4 different cases as i thought it might be power related but with no change. Hope you can help? 
Update I have just tried a different power wire and it has started and seams to be ok! It looks like it might of been a dodgy power cable. I will be testing it all day to day!!