Video Card Problem

stabilo

I have a laptop with an ati video card, mobility 9000 I think. I also had an older version of the omega drivers installed. I recently purchased the new wxpansion for age of empires 3. Before the game was working fine but when I installed the expansion it would crash to desktop after 5-10 minutes. So I figured I would get a newer version of the omega drivers and uninstalled the old ones but I think I may have made a mistake and uninstalled the card itself cause now when I try to run it it says that it requires a video card of at least 64 mb and mine has 0mb?