Those of us using Nvidia Chipsets... After finishing the HDD install:
Start Networking and connect to the internet.
Find your card:/etc/init.d/networking start
wicd && wicd-client &
My lspci outputlspci|grep nVidia
Now go to nVidia Driver Downloads. Select the card that you have (as highlighted on my lspci in the above linked image), and download the driver for 32-Bit Linux TO YOUR /root DIRECTORY.
Once it's downloaded, press <Ctrl>+<Alt>+<Backspace> to kill your X session.
Now type the following on the command line (Press the TAB key at <tab> for tab completion):
And hit the <Enter> key. Run through the installer.cd
Now, when you're back in the BT GUI, click the KDE Menu (little dragon, bottom left-hand side of the screen) and you will find Nvidia X Server Settings under the System menu.apt-get install nvidia-settings
You're done, and X is configured to like your card!