[Mac-BR] Preview iMac

[Alexandre Oliveira]

Alguém sabe o que pode estar acontecendo (segunda imagem)? 
Começou de uma semana pra cá, de 2 a 3 vezes por dia. A tela fica assim e quando acontece, não dá restart, preciso desligar e ligar novamente. Já reparei partições etc.
Alexandre Oliveira



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