FC8开启compiz的错误提示,帮忙看一下

Checking for Xgl: not present.
Detected PCI ID for VGA: 01:00.0 0300: 10de:0392 (rev a1) (prog-if 00 [VGA])
02:00.0 0300: 10de:0392 (rev a1) (prog-if 00 [VGA])
Checking for texture_from_pixmap: present.
Checking for non power of two support: present.
Checking for Composite extension: present.
Comparing resolution (1440x900) to maximum 3D texture size (4096): Passed.
Checking for nVidia: present.
Checking for FBConfig: present.
Checking for Xgl: not present.
Starting gtk-window-decorator
libccs: dlopen: /usr/lib64/compizconfig/backends/libgconf.so: cannot open shared object file: No such file or directory
/usr/bin/compiz (core) - Error: Couldn't load plugin 'workarounds'


N卡驱动已经安装好，并且可以开启特效，但它会出现这提示，，，是哪没有设置对吗，帮帮忙看一下。

注意看这一句。你缺这个文件。