SW2009, FX350M, defaults to software OpenGL

Has anyone else got SW 2009 64-bit running on a Dell M65 withVista x64?

There are no 64-bit drivers listed on the SW website for thisgraphics card and OS, but this machine ran SW 2008 SP4 64-bitperfectly, while SW2009 defaults to "software OpenGL".

I have tried various drivers for the Quadro FX 350M graphics cardup to version 156.87 to no avail, so would much appreciate anyadvice before rolling back to 2008 SP4.
SolidworksAdministration