Big purple lines and one white line on my screen every 5min
HI, everytime i try to edit photos in photoshop my screen freezes and displays purple lines. Its 2012 model. I read in other discussions that switching off in energy settings the graphic card switch helps. I tried that, thought it did the trick, but 15 min later it happened again. it only happens when i open graphic software and do a lot of photo editing. If anyone has any input i will appreciate. Thank you
Macbook pro