Disclaimer: I posted this like 10 years ago and never found an answer. I have the actual Return to Zork CD, so this isn’t done abandonware edition. I create an iso. Then I run it with basically default settings, the same settings where every other game is tried works fine. But RTZ reports a i/o hard …

I’ve been installing a bunch of my old favorite dos games in the latest DOSBox. When I set graphics if I try mouse the ddraw option, everything is weirdly cloudy or blurry. What would cause that? The computer I’m using is modern with directx and nvidia graphics card. I run stuff like Witcher 3 on it …