X11 Server Configuration

To configure X use : SaX2 (SuSE) or XF86config or Xconfigurator

To tweak video modes, cope with incompatible graphics cards try:
xvidtune or SuperProbe

Personal X Configuration

.xinitrc: File that contains applications to start after beginning
an X session including the window manager.

.Xdefaults: Parameters for X applications, e.g., colors.
Run xrdb to reload the changed Xdefaults data-base.