3D video issue w/ new 2015 rMBP (Radeon M370X)

I recently upgraded from a 2014 MacBook Pro to a 2015 model with the Radeon M370X graphics. I play Final Fantasy XI in a Windows VM, and I'm seeing rendering issues that I never encountered on the previous machine (nVidia 750M). I have attempted to run the game in both Windows 7 and 8.1, tried DX 10 and 9, tried various video memory settings, reinstalled game, and nothing seems to help.

Random textures, especially on character models, are just not appearing at all, or flickering in/out badly. Any ideas?

 

Hi Jason,
Please try disabling Directx and check how it works.

 

Dhruba, it's a 3D game, it requires DirectX to run. I confirmed that it does not run at all with DirectX disabled.

 

Nothing? =\

 

@JasonJFMX please try changing Game compatibility: right click on .exe file -> choose properties -> compatibility to Windows 7 or XP for example.