X-server configuration problem

[centauri99]

Hi everybody!
I want to ask someone to help me,I've downloaded the xorg-xserver package by apt-get so,I've got it installed,but there is a little problem,when it asks me for the configuration to make xorg.conf it can't create the file at the end,it writes the following errors:
dexconf:error: cannot generate configuration file;shared/default-x-server not set.Aborting.Reconfigure the X server with dpkg-reconfigure to correct this problem

xserver-xorg postinst warnning:error while preparing new Xorg X server configuration file in /etc/X11/xorg.conf.dpkg-new;not attempting to update existing configuration.

If I write dpkg-reconfigure xserver-xorg the it writes one more note(and the two errors that I mentioned too)server-xorg postinst warning:overwriting possibly-customised configuration file;backup in /etc/X11/xorg.conf20071031130821,I guess it's because the xorg .conf file has been already created before,but unfortunatelly it's empty.So,the first configuration creates an empty file.Could someone help me?

[hughitt1]

Did you run dpkg-reconfigure xserver-xorg as a super user (i.e. sudo ...)?

[devils casper]

Did you gain root privileges before executing dpkg-reconfigure command?
Log in as regular user and execute this

su -
dpkg-reconfigure xserver-xorg
exit
startx

Post exact error message here, if any.

[centauri99]

yeah,of course I was signed in as root,the problem roots somewhere else,I think hat the configurator program can't write for some reasons,I just want to know the reasosns,and the solution

[devils casper]

Execute this

cat /etc/X11/xorg.conf

Does it list contents of xorg.conf file? Execute startx and post error message here, if any.