my desktop is very big,so big that all the info at the top of the screen is missing. I can't get to any applications, system, or preferances. Plese Help.

You can use a simple tool to reset you video setting.

Open a Terminal by hitting ALT-F2 and type in gnome-terminal, and type

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install displayconfig-gtk

You will be ask for your password, you won´t see anything when you type it. Hit enter.

Then to configure your monitor resolution:

sudo displayconfig-gtk

Hope this helps

Sorry WWSmith36, but this solution is not the solution for my problem.

Do you know how to correct my problem?

Start your computer normally and hit ESC when you see Starting Grub. This will give you the grub menu.

With the use of the arrow keys, highlight the title of your choice you want to edit (the first Ubuntu entry should be ok) and press "e" to go to the entry editor interface. You will now see the boot entries for the title you selected.

Highlight, again with the use of the arrow keys, the line that say "kernel" and press "e" to edit that line.
Add, without the quotes " vga=normal" and press the enter key to go out of edit mode.
Press the "b" key to boot your system.

Making this change will have no impact on your installed system and is to be considered safe. If you reboot your system this change will disappear. It is temporary.

Please try what I suggested above. And if it doesn´t work provide more information.

Please try to press CTRL+ALT+"+" and/or CTRL+ALT+"-" to dynamically change video frequency
or press CTRL+ALT+BKSPACE to restart graphics layer.

Reconfiguring your xserver-xorg may help you.

A) ---- If you can view graphics Gnome desktop

Please open a Terminal from the menu Applications->Accessories->Terminal
and jump to step C

B) ---- If you cannot view graphics Gnome desktop

Please press CTRL+ALT+F2 and make login with your user and password
and go on to step C

C) ----------------------------------------------------------------------

To make a backup copy of your actual /etc/X11/xorg.conf type:

cd /etc/X11
sudo cp xorg.conf xorg.conf.bak

give your user password when requested, you don't see nothing when you type it, then press enter.

Then try to reconfigure your xserver-xorg

sudo dpkg-reconfigure xserver-xorg

answer to the simply questions, then restart the pc.

If something goes wrong you can restore the saved copy of your old configuration, open a terminal or login to a virtual terminal by pressing ctrl+alt+F2 and type:

cd /etc/X11
sudo cp xorg.conf.bak xorg.conf

and restart the pc, type:

sudo reboot

Hope this helps