That's exactly what happened to my screen, I ve seen some videos on YouTube on how to fix it but I dont wanna screw up my Box and Void my warranty then have to buy a new one. Luckily my Dad's friend might be able to fix it.

Ok. so I was playing my 360, and my screen started to go fuzzy and my 360 started making weird sounds. So I turn it off reset it and everything and then turn it back on. The power light came on and then one ring started to blink red. I was like **** RROD. But no I got some error code called E-74. So I'm making this post because insted of paying $100 and waiting a month for repair from Microsoft, I want to fix it myself, if anyone knows how and can help please do so. I already unhooked everything took out my hard drive and tried it then and still had the message. WHAT IS E-74!!!!!