Video Memory Error

[cicerohorse]

I am having trouble with the system crashing later in the game.
I have installed patch 1.74

The error that I am getting is

Failed to allocate video memory please try reducing your graphic settings.
file:\source\main\civilization4\SDKs\Gamebry02_0\corelibs\indx9renderer\indx9vBmanager.cpp,line:1019
and
Runtime error:
Program:...raxisgames\SidMeier's Civilization4\civilization4.exe

I have tried reducing graphic settings on the game and on the laptop monitor but it still crashes any suggestions?

 

[GVBN]

What video card is this? Let me guess... Radeon X1 series?

 

[thecrazyalaskan]

Make absolutely sure you have the latest DirectX 9.0c installed, as well as your video card drivers.

For DirectX:
http://www.softwarepatch.com/windows/directx.html

For Nvidia card drivers:
http://www.nvidia.com

For ATI drivers:
http://ati.amd.com/support/driver.html