Illustrator gpu preview GRAYED OUT
It seems that Illustrator has a bug. GPU preview, which makes Illustrator very fast - keeps getting turned off. This means it automatically switches to CPU preview which is slow in anything you do. This is very serious issue since it can slow you down even 3-4 times. Does anyone have any idea why? I have iMac with 4GB graphics card, But exact same happens on MacBook Pro as well.