Cliff

Hi guys, Just installed AD for Windows on my Windows10 PC. My screen flickers/flashes when drawing or even typing text. Same thing happens with AP trial but has never occurred in any other software. It gives me headache after using it for a few minutes. I will get a refund if this cannot be fixed as it is impossible to use. May be a simple setting tweak somewhere is all it takes, can anyone help? cheers Cliff