Detected configuration:
Architecture: x86_64 (64-bit)
X Server: Unknown X Window

Detected version of X does not have a matching 'x720_64a' directory
You may override the detected version using the following syntax:
     X_VERSION=<xdir> ./ati-driver-installer-<ver>-<arch>.run [--install]

The following values may be used for <xdir>:
    x430        XFree86 4.3.x
    x430_64a    XFree86 4.3.x 64-bit
    x680        X.Org 6.8.x
    x680_64a    X.Org 6.8.x 64-bit
    x690        X.Org 6.9.x
    x690_64a    X.Org 6.9.x 64-bit
    x700        X.Org 7.0.x
    x700_64a    X.Org 7.0.x 64-bit
    x710        Unknown X Window
    x710_64a    Unknown X Window
Removing temporary directory: fglrx-install