I don't see an advanced options area in my game...I'm in the "Video" area of the in-game options menu. I think you may be referring to something outside the game. If so, how do I access it?
EDIT: Oh, ok. I'm looking in advanced options (had to check that little box), but I just see detail settings and stuff like that. No DX 11 stuff.
Off Topic: Your signature is awesome.
Off topic: thanks
The first option in the advanced settings is a drop box between dx 9 and dx 11 support. The window doesn't display enough of the text to tell that thou. make sure you click on the top option in the drop box, which should be DX9 support. Apply the changes. And then EXIT the game client and restart it from desktop.