[newbie] Video Card Installation

I'm using linux mandrake 6.5. When I try to install my video card with Xconfigurator I get error messages like -- - there was an error detecting the video ram on your card. Y

[newbie] Video Card Installation prob's

When I try to install my Video Card for Linux using Xconfigurator i get errors like " There was an error detecting the video ram on your card. You should try configuring the video card manually " and i try to do that then i get " There is a problem with your Xconfiguration. You may go bac