How to get a modern PC enviroment out of a MAC68 one

Install ubuntu 11.04!!!
BUT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
----Do not select the automatic login.
When computer starts...
Before typing your password, click on your user name.
At the bottom will be some options (such as Keyboard etc.)
Select Classic UBUNTU
Now type your password at the password field and....
VOILA!!!
A modern environment!!!
End of MAC68 (19th century) environment.
--------------------------------------------------------------
If you are stack with an already installed system then:
On the left there is an icon with a plus sign.
Click on it.
On the top to the right there is an application "menu".
Click on it.
Select the System (from the submenu which will pop up).
On the presented applications there is a group installed (not the first group, not the third group but the second).
It shows some of the installed applications (o lala!!! IBM-PC DOS 1900 something).
Click on the word who says to show more.
Find the "Login Screen".
Click on it.
An application that will let you choose if you want to be automatically login will open (maybe it will take some time so do not worry).
Maybe some times your password will be asked.
There is a button to unlock the application.
Click on it.
There you can select the UBUNTU Classic as environment.
Save it.
Click on the up right corner and select reboot.
Now you have a modern (21st century) environment instead of Apple's MAC68 environment (renamed as UBUNTU).
As Microsoft did (some years ago with IE) there is no way to completely remove and/or blacklist "unity" so it may come back again accidentally or by UBUNTU's policy.
So keep this page printed (or at least the URL) and in case UBUNTU's geeks will try hiddenly restore your environment to MAC68 look, re-disable it. Some clicks (or a bunch of them I may say) are worth if you want to be modern with a modern environment.

LibreOffice

Install LibreOffice on UBUNTU in 4 steps:
sudo apt-get remove openoffice*.*
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice libreoffice-gnome language-support-en


(για Ελληνάρες ισχύει το παρακάτω παρμένο από http://osarena.net/2011/04/diagrapste-to-openoffice-ke-egkatastiste-to-libreoffice-me-4-entoles.html)

εγκαταστήστε το LibreOffice με 4 εντολές!

sudo apt-get remove openoffice*.*
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice libreoffice-gnome libreoffice-l10n-el libreoffice-help-el language-support-el

bye-bye OOo
There's a new guy in town. His name is LibreOffice!

How to delete useless Windows Files in Ubuntu Linux

http://en.tuxero.com/2007/09/how-to-delete-useless-windows-files-in.html

If the files are in a samba directory you must use sudo

ex.
sudo find /my_path -type f -name "desktop.ini" -exec rm -f {} \;

HP LajerJet 5000dn printing problems

UBUNTU (and maybe other Linux) users
If you have problems with default printer driver (for me HP LajerJet 5000dn printed some characters mixed) goto

http://hplipopensource.com/hplip-web/index.html

Tabs open at end in firefox

When I installed ubuntu 10.04 firefox started to open new tabs not at the end (where i can find them easily) but after the tab I was working.

"Reclaim" your new tab at end of the tabs by
....
If you don’t want new tabs to be affected, go to
about:config
(see http://kb.mozillazine.org/About:config for more info)
and make false (by double clicking it) the preference
browser.tabs.insertRelatedAfterCurrent
...
(maybe other versions of firefox have something like this so find it by yourself)