question about gt-425m sorry if its a stupid question, but i need help

I bought msi laptop fx603. I instaled all drivers that I received on dvd from package. But when I enter to the system menu, I can not see anywhere nvidia installed on my machine.
I have nvidia center installed, but on system, when I click on display section, I can only see instaled hardware intel media graphic card, but not the nvidia. I read about gpu tehnology something about turning on nvidia only when there is need for it, so please if someone can tell me, is it ok to see in system only intel graphic card?
Thank you