If you are going to install Debian 6 and have an ATI Rage Pro graphics card, you will probably run into the same problem I did. A driver issue. Here is how I got the driver graphics problem fixed…
Power up into recovery mode and make sure you have an Internet connection.
Open vi or vim to edit and add non-free into the sources.list file.
Type vi /etc/apt/sources.list
vi or vim is a text editor in Linux.
Add the line… deb http://ftp.debian.org/debian squeeze main contrib non-free
In order to ass the line stated, you will have to press i to start inserting text.
After you insert that line, press Esc and then press : and type wq to save. Press Ctrl Z to exit.
If you want to learn more about vi or vim, visit http://vimdoc.sourceforge.net
Go to the terminal screen and type …
aptitude install firmware-linux-nonfree
That should do it, after you reboot.
Here is the link to the ATI Rage 128 Pro driver if you want to download it and install it using a USB drive or CD Rom…