Hi everyone,
Just to inform, that now I am working without problem !!!!
Thanks to everyone who gave some possible solutions, you guys are a wonderful community.
What did I do ?, to be honest. I did so many things, now I'm not sure which one did the job.
In short I went to the video settings and click and switch here and there, then I restart Windows and the problem is gone, sorry I cannot give a real answer but I did not write the changes I made.
Now I am productive and then I will show my first project.
Thanks again and regards
Rafael Liriano