How to restore "MS Excel" to the default settings

Sometimes happens that for some reason Excel starts functioning as he wants, you can reinstall, repair, and nothing, the follies of excel do not cease to happen.
That is because although you reinstall or repair the excel this always keeps the configuration it had at the time of malfunction.
For that we need to delete the faulty settings and then once deleted the configuration excel will start again with the default configuration that comes when you install it for first time.
To delete the configuration of EXCEL completely you have to close it first, now just have to delete the following registry path windows.
[HKEY_USERS\\S-1-5-21-THISCANCHANGE-1003\\Software\\Microsoft\\Office\\12.0\\Excel\\Options]
Ahi borramos el directorio "Options"
When Excel is open again will restore all settings to factory default it brings

For those who wonder how to enter the Windows registry, this is done by going to "Start Menu>> Run" and type "REGEDIT", when run will open the "Registry Editor".

How to update Mozilla Firefox from the terminal

Today i bring you a super simple way to update your firefox to his lastest version by command line (terminal)
First we need to add the repository. In a terminal write:
sudo add-apt-repository ppa:mozillateam/firefox-stable

now type this:
sudo apt-get update

and now this:
sudo apt-get upgrade firefox

With this we finish updating our Mozilla Firefox.

How to restart Gnome without rebooting the entire PC

One of the bigs problems in linux is the graphic interface, those who use Linux and never hang Gnome is because is doing something wrong. Here, I explain two ways to restart GNOME without rebooting the entire PC.

Mode 1: Open a console with "Ctrl + Alt + F2" (I use F2 but you can use another F). In the console type:
sudo /etc/init.d/gdm restart
the GUI would have to reboot and reload.

Mode 2: Kill violently Gnome panel. In a console type:
killall gnome-panel
After this we return to the interface by pressing "Alt + F7"


Translated by Google and me from Spanish. Original version here:
http://elsoportista.blogspot.com/2011/06/como-reiniciar-gnome.html