Re: 32bit compatibility problem with latest Linux driver
I don't know Mandriva but GoogleEarth is a 32bit app. The 32 driver is not enough, you need some sort of X "layer" in between.
Under Gentoo I installed the app-emulation/emul-linux-x86-xlibs package to use 32bits graphic app under 64bits system. You need to find out (probably on some Mandriva forums) what package install equivalent files for your distro.
PS: glxgears is a false test as it calls the 64bit program which of course interact well with the 64bits drivers.