Same issue.
When the Framebuffer is set to Default, None, Write Back & Reload, :
When I load up Zelda OoT (with no hi res textures), it tells me either "Cannot initialize DX9, check your Direct settings" or "g_pRender is NULL."
When the Framebuffer is set to anything else:
I load up the game, and I hear Epona galloping along and the title music, but the screen stays black.
This is all under Direct X, which I am trying to use for shaders to work with. OpenGL works fine with any Framebuffer setting.
I'm using 1964 with the latest 1964video plugin, no hi res packages in this testing, Win7 x86, Direct X 11, and GeForce 8600M GT.
EDIT: I've gone back through releases and R63 works (post #79), and I've tried hi res textures, which work, too. but none after. It's a DX8 build, though, so I haven't tried the shaders, but I guess that's not really the point of the thread.