Hola Ninja, pon en español tu post, yo te lo puedo traducir y colocar en el formato de bugs!. Saludos
Well the primary language of these forums stay English, so for any message in another language, please always provide a translation along.
We'd rather not have messages in another language at all, for that there are the Non-English communities.
As for the issue of the OP, you might have issues with your browser so you need to check for errors in your browser, or since it's a new OS installation, troubleshoot the C2 preview server.
What is your new OS ?
Also, I don't understand the part about being on the internet ? What does it change ?
It sounds like you are having some display issue, isn't it ? In that case, make sure to update your graphic card drivers.