I had a problem with Ubuntu.
Hello, everybody concerned with my problem,
I would like to thank you all who tried to help me. If someday I know about Linux as much as you do, I will try to help somebody else if they need my assistance.
Now I would like to say that I have downloaded Ubuntu 11.10 and using a USB stick installed it my computer. Now there are two operating systems in my computer, Windows 7 and Ubuntu 11.10, and I am using Firefox on it installed to write you this note. It was so easy that I am ashamed of having bothered you for such a trifle.
Because of having succeeded in making Ubuntu work on my computer, I am feeling as happy as I felt when "Sport Club Corinthians Paulista" won the "Brazilian Soccer Championship - 2011" last Sunday.
Have you all a Merry Christmas and a Happy New Year!