Originally Posted by
saevel
Firstly your using a freaking Intel HD as a GPU, that's a bad idea. Those things are pretty much good only for watching movies and playing the most basic of games. FFXI's graphics engine is archaic as hell, it's actually written to use DX8 which was long before any of current Intel onboard GPUs were made. DX8 is emulated through a DX9 library which is then fed through the WDM for native execution on the actual hardware. Intel's GPU drivers suck in general, don't expect much comparability from them.
TLDR; buy a cheap dGPU off newegg and it'll work much better. Something like a 650/660 or one of the equivalent AMD models.