Nvidia has dropped support for Aero in the 5000 Series Video Cards with the
97.46 Drivers. You now need at least a 6000 Series video card to run Aero.
Try Comp-USA or Best Buy if you are in the USA.

"Paul" <Paul@discussions.microsoft.com> wrote in message
news:DEBF7E4C-9E83-47A9-84B6-E9400F054EB0@microsoft.com...
> I'm having a bear of a time finding a compatible PCI card for aero. I've
> got
> a half way decent system ready to go (dual core 3.0Ghz, 2GB RAM) but no
> PCI-E. The only PCI card I can seem to find in the varied HCL's is the
> nVidia FX5500, but several owners of nVidia cards are complaining about
> their
> performance.