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.
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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.