Strange Problem...

[NoamC]

Hey everyone!
Happy holidays for those who celebrate now.

I have a question, I have a wierd problem with the screen saver..
I created a password protected user account, and when the screen saver begin to work, I (or anyone else) need the password to get back to the screen. Now the strange thing is that always, out of the blue, the screen saver stops and asks for the password as if someone moved the mouse or something, however no one and nothing touches niether the mouse of keyboard, nothing.
And when it happens at night, the screen stays with that password request window and the screen saver doesn't begin to work again, so what happens actually is that I don't have screen saver working for more than a few minutes.

Has it happened to anyone? does someone know what's the problem...?