Vlk, MrALan is right.... I looked for it yesterday in the forum and found it. But, unfortunately, the problem didn't go away a hundred percent as I first thought and post a few days ago. Now it comes back intermitently. Sometimes it happens, and sometimes it doesn't. It happens more than it doesn't.
By the way, I'm gonna change the ok icon on the thread of this message. And I'm considering uninstalling avast, because what is happing with my system is very annoying
Juliano