My Simple ATI Instructions
1. Load FC3, setting the colors to "256 Colors" instead of the default "millions of colors"
2. Install the motherboard/chipset drivers
3. Install fglrx
4. Change /etc/X11/xorg.conf video setting from "radeon" to "fglrx"
5. Change the display colors to "millions of colors"
I worked this out on a previous installation of FC3 and tried it on a clean install last week. It took all of 15 minutes, with a lot of that waiting for the computer to reboot. Now, for the steps with expanded explanations.
1. FC3's default will cause the program to hang up during boot up. It doesn't have what it needs to make the ATI card work with more than basic colors. During the installation, when setting the video card and monitor, change the colors to "256 Colors" just to get it working.
2. The ATI instructions are where this little clue is found and it is the most important one. I didn't find them on my motherboard manufacturer's website; I found them on the chip maker's. In my case, I have a VIA chipset. On their website, I found the binaries with installation programs. They said FC2, but worked great for FC3. I took the shotgun approach, installing everything in the VIA download.
3. Went to ATI's website and got the latest version of fglrx. Loaded it.
4. This step tells xorg.conf to use fglrx. I opened the file (as Root), searched for "radeon" which took me right to where I needed to go. Changed it to "fglrx" and saved the file.
5. Right click the anywhere on the Gnome desktop and select the displays option. Change the color to "millions of colors" and close it out.
6. The easiest part of all!
Prior to this, I had tried just about everyone else's ideas. I tried the various patches, but they didn't work with my 64-bit system. I tried someone else's combo program that combines all above into one rpm. Again, none of it worked until I went back to the ATI instructions and read them, finding out nothing is going to work until you load the motherboard/chipset drivers. Then, it all works!
Hope this helps someone.