Hello. I cannot install High Sierra on my PC. I'm getting an error here. What am I doing wrong ? I first thought a bug in my GPU Radeon HD 2600 PRO SUPER I decided to replace it with Palit 9600GT but the result is the same. Want to know Radeon is it possible to make? If that here is my the PC (Intel® Core™2 Duo E6750, 4GB RAM, biostar g31d-m7, Radeon HD 2600 PRO SUPER our Palit Nvidia Geforce GT 9600)