Could not load X GUI after boot

(==) log file: "/var/log/Xorg.0.log"
(==) Using config file: "/etc/x11/Xorg.conf"
(EE) end of block range 0x1fffffff < begin 0xe0000000
(EE) No devices detected.
Fatal server error: no screens found

This is the error I get when i try and boot to ubuntu. It then takes me to the command prompt where I can enter commands but I do not know what to enter. Please help.

You could try to edit the configurations for your display hardware using the following command:

sudo dpkg-reconfigure xserver-xorg

Did you use the alternate CD because the livecd would not work?

Yes, with the livecd it wouldnt even let me install. With this cd, it installed but now I got this error. Ill try what u just told me.

Ok, it asks for my video cards bus identifier. What is that and how do I find it. Thanks.

After I run what you told me, i get all the way until it tells me to enter if i want 24bit or 16bit...etc. I chose 24 and it always quits the configure thing and goes back to the command prompt displaying this error:
xserver-xorg postinst warning: overwriting possibly-customised configuration file;backup in /etc/x11/xorg.conf.20061220015749.
Please help.

This is good: it just created a backup copy of /etc/X11/xorg.conf in order to restore it if anything goes wrong.
Now you can try to reload gdm by typing /etc/init.d/gdm restart and see what happens.

Ok well on startup this morning it goes through the normal routine but then all of a sudden my screen goes blue and then it displays no source on my screen which means that the computer connection isnt going through to it. Now I cannot even get to a command prompt to try things. Please help.

To get to the console use ALT+CTRL+F1 then you can try to reconfigure the graphics card again using the same procedure. This time set the screen resolution quite low - 800x600 for example.

Once you have done the reconfiguration you can restart X without rebooting using this command:-

sudo /etc/init.d/gdm restart

or

sudo /etc/init.d/gdm stop
sudo /etc/init.d/gdm start

Ok so i changed the resolution to what you said and tried to run startx again. It gave me the same error as above. If anyone has any ideas on what to do next please tell me. All im trying to do is get the GUI to show up so that I can use it. Ive been trying and trying and fixing error after error and still cannot get it to work. Please help.

Ace, try this, check the Vertical and Horizontal refresh rates of your monitor, you can find this information in yours monitor instructions or in web.

Then check the file /etc/X11/xorg.conf

Look for this sentence:

Section "Monitor"
        Identifier "Monitor0"
        VendorName "Monitor Vendor"
        ModelName "Monitor Model"
        HorizSync 30-107
        VertRefresh 48-120
EndSection

If your file doesn't content this information you have to put the correct parametres of your monitor.

When finish to modificate the archive juost restart de graphic server.

Hope this help.