I was on my Mac, and I was on youtube and facebook with my beats plugged in when my computer screen started glitching. I saw streaks of pink and the screen started showing grainy gray streaks as well, and this really screechy sound started blaring. the whole computer was frozen as well, so i held the power button until it shut off. I let it sit for a bit and tried it again, and it didn't start glitching until about 15 minutes later when I was playing another video. I was wondering if this has ever happened to anyone else? Is it a virus or is something wrong with my mac or my headphones. any help is appreciated thank you!