I hope this helps some:P
* If Fedora did not recognize your monitor during installation open a terminal and log in as root ("su -" ).
Hit enter and gedit will open. Scroll down to the "Monitor" section. Find the "HorizSync" line and enter your monitor's supported horizontal frequency range. The line should look something like "HorizSync 30.0 - 70.0". Enter your monitor's supported vertical frequency range opposite "VertRefresh". The line should look something like "VertRefresh 50.0 - 160.0". Scroll down to the "Screen" section and opposite each instance of "modes" enter you monitor's supported pixel resolution, starting with the highest. The line should look something like "Modes "1024x768" "800x600" "640x480"". You should be able to get these values from your monitor's manual or from a search for your monitor by manufacturer and model number on the Internet. Use caution when entering these values and be sure that they conform to your monitor's published specifications or you could be left with a non-working graphical environment. Hit the "save" button in gedit and exit gedit. Log out and log back in.
* Click "System" > "Administration" > "Display". Type your root password in the dialog box presented and hit enter. Click the down arrow on the right of the "Resolution:" box and select your preferred pixel resolution. Click the down arrow on the right of the "Color Depth:" box and select your preferred color depth. Log out and log back in.
* Click "System" > "Preferences" > "Screen Resolution". Click the down arrow on the right of the "Resolution:" box and select your preferred pixel resolution. Click the down arrow on the right of the "Refresh rate:" box and select the highest refresh rate available. A refresh rate of 85 Hz or more will decrease noticeable flicker significantly and may eliminate it completely. Click "Apply".
Caution!Special warning regarding mixing incompatible repositories for software installation and updates:
* We will be using the program applications Yum and Yumex described below as methods to obtain software and to update your Fedora Core installation. You will be configuring these programs by adding repositories which are groups of software created by third party packagers that we use in addition to original Fedora Core and Fedora Extras repositories that come standard with your new installation.
As you continue please keep the following in mind: You should not use the livna.org repository in conjunction with the dag/freshrpms/dries/newrpms (RPMforge) collection of rpms in your configuration files for automatic updates. Use one group or the other but not both. These two groups are mutually incompatible and can cause errors in your installation if used together for automatic updates. Regardless of which group you choose you should also avoid using the ATrpms repository in your yum or apt configuration files for these reasons.(http://fedoraproject.org/wiki/JohnMa.../ATrpmsWarning
) Some additional information can be found here.(http://dag.wieers.com/home-made/apt/FAQ.php#D1
With this being said please note that it is nonetheless possible to obtain single RPM packaged applications from incompatible third party repositories in cases where such packages do not create errors when installed with yum. More specifically it is possible to configure other repositories with their enable flags set to "0" (off) so that the yum "--enablerepo" command must be used when one of those packages is desired.