driver issue for sony vgn-sz77 display card identify issue

I have a sony vgn-sz77 notebook, it’s have 2 display cards, an intel 945gm for ‘stamina’ mode and a nvidia 8400M GS for ‘speed’ mode( I normally use speed mode by a hardware switch).

When I try to install cuda driver 2.2, it told me there was no card support this driver?!

I don’t know if anybody met the same issue and how to solve it?


in driver download page,

The following notebooks are not supported in this release:


  1. Sony VAIO notebooks (please contact the notebook OEM for driver support for these notebooks)


  1. Any notebook that is launched after the release date of this driver