Graphics driver crash

My graphics driver keeps crashing it only happens when i play final fantasy xi. it happens more often when in ceizak battlegrounds and yahse hunting grounds. i have rolled back the drivers and that just makes it worse instead of 10 to 15 mins of play time i get less then 2 mins Ive uninstalled the latest driver and reinstalled it 3 times now. i have also uninstalled the game and reinstalled it twice

computer specs
Windows 7 home premium 64 bit
nvidia geforce gtx 650 1gb ram
driver version 314.22
also tried driver version 314.07 and 310.90

Same. Windows 7 Premium 64 bit, nvidia gtx 580, using 314.07 drivers. Updating them now, but might hold off playing until I see some response here.

Played the day the expansion was patched with no problem. Hard crashed twice in a burn party. Seemed to be when people were casting buffs. First time I got a "graphics driver crashed" message. Second time my entire computer crashed and needed to be restarted completely.

I have the 314.22 Version and I have the same issue but it only seems to happen when Im in battles it crashes the graphic card then have to use task manager to close and relog into FF11