i cant start ffxiv

[imjustahealer]

i cant log into ffxiv. i put my password in & can click on the play directx 11 icon.
once i do that & get to the main screen to start the game, my curser just goes over "start" like there's nothing there.
neither start, data centre, movies, configuration or exit will let me click on it.
when i go into my task bar to try and close the window, a bar will appear ingame asking if i want to "exit the game?"
again, i cant click on the icon saying "ok", as it appears not to be there when my mouse scrolls over it.
the only way i can get out of the game is to reboot my pc.
i have 2 other mmo's on my pc, both of which i dont have a problem with.
any ideas what might be the problem here?
i have looked to update my drivers & theyre already updated.