The version of Ghostview that is installed on this computer does not contain any of the Ghostview device drivers that are known to Okular. PostScript support has therefore been turned off in Okular.
A versión de Ghostview que está instalada neste ordenador non contén ningún dos controladores de dispositivo de Ghostview que coñece Okular. Polo tanto desactivouse o soporte de PostScript en Okular.