I have to settle this cause it's driving me nuts.

with winxp you get the 945 driver cause i guess they never made the 950 driver for xp..in vista you get the 950 driver.i have read that 950 has ''Video HW Transform & Lighting/Vertex Shader ''.is this true? do you have sources?

i may just go from xp to vista due to this..if i do an upgrade without doing a format, will it install all the new drivers and will my programs work ok?

i mean ''it was false info''..