Can I get some help with my screensaver?

[cgentil]

Screensaver

Hi,

I enabled the screen saver, so far so good .

I received this warning:

I disabled the screen saver and out of curiosity I enabled again and this warning did not showed again, I suppose it have disabled anything, I do not know what.

Does anyone know if something has turned off and if so, what?

Grateful.