My MacBook Pro screen goes black with purple lines when being used
While using my MacBook Pro it sometimes randomly goes black with purple lines on the display and beeps repeatedly. I can't control anything and have to turn it off by pressing the power button and then back on to access the MacBook.
I have already taken the MacBook to apple to look at, as it had a problem earlier where it wouldn't boot (just went to a blank white screen) and they ended up replacing the motherboard.
I do have an alert saying 'Service Battery' in the bar at the top, so could this problem be a battery problem? Anyone have any ideas?