I'm afraid that didn't fix it. Just tried it, among with several related flags. No visible changes in fullscreen. WTF? I also tried some options from my NVIDIA control panel on JJ2, like disabling triple buffering and Vsync, but no results. Then some compatibility options (WinXP/98/nothemes etc.) again without results. I guess I'd need to run some more DirectDraw based games then...
Perhaps someone could try Windows 8 and JJ2 on a different set of hardware, such as ATI/Intel graphic adapters? Or maybe I'd wait for better optimized driver support on Windows 8 or some Windows update from M$ themselves? Hardware is still very unlikely to be the culprit here since DirectDraw is supposed to be a software rendering standard.
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