I have an Nvidia Quadro FX1500 graphics card on XP64. Getting the correct video driver for ACA is critical as we all know. I did a search of the Adesk web site and one page told me to use version 259.57, while another page told me to use version 265.70.
The page telling me to use the newer driver was under the certified hardware page, where ACA is not a choice in the product used, only acad.
The page telling me to use the older version was under the ACA support page.
Then I go to the Nvidia web site and they tell me to use the 191.00 version.
I'vehad a look nside the hardware XML installed with 2012 and te supported driver version is 6.14.0012.6570.
Confused? You bet!
Does anyone know which is the correct version?
Start with the AutoCAD 2012 driver: if you experience crashes beyond what XP-64bit helps with, roll back to the ACA recommended driver for your old OS.
Second to last choice would be NVidia's driver.
Last choice, and probably most stable for Xp-64bit, is what you are using now.