Quote Originally Posted by radar View Post
It's fairly shocking that Square still have not updated direct X, there are numerous graphics issues with this such as flickering model seams on certain armors and birds wings etc. You can fix it with 3rd party software but most don't.
Particularly in the era of FFXI, there were many heavily customized versions of directX 8 and 9. You can't just click a button and move them to a newer version, the APIs have changed substantially between major revisions and aren't directly compatible. When you run old games, an old version of directX is used. Using a newer directX version is even pointless unless a game is going to use the features introduced in said newer version.