xfree86-dri

[Vano Beridze]

Hello

I've got Fedora Core 1
1. I launch xscreensaver-demo
2. Choose Atlantis screensaver.
3. Change some settings
4. Press Preview Button
5. Sometimes it works but sometimes
it tells me

Xlib: extension "XFree86-DRI" missing on display ":0.0"

here is the snippet of /etc/X11/XF86Config

.............
<http://www.opengl.org/discussion_boards/ubb/Forum4/HTML/001152.html>Section 
"Module"

# This loads the DBE extension module.

    Load        "dbe"      # Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
    SubSection  "extmod"
#      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

# This loads the Type1 and FreeType font modules
    Load        "type1"
    Load        "speedo"
    Load        "freetype"
#    Load    "extmod"
   # Load        "xtt"

# This loads the GLX module
    Load       "glx"
# This loads the DRI module
    Load       "dri"

EndSection
...................


what might be the problem?

Thank you

Vano