So I'm on the latest version of macOS and get those very annoying glitches on Powerpoint. Also get these on Safari on the adress bar. It's very unprofessional when I have to do presentations and my machine is not even 3 month old. See the glitches here : I went to Apple store 4 times and they tested the hardware, which is supposed to be working fine. So they had me reinstall the OS 4 times and after a couple of days the glitches come back every time. Had a Macbook Air before this, never had a single issue... Not sure what is the next step. Anybody had to deal with this?