Secure screensaver in windows vista

Question : the screensaver on my computer starts after a very short delay and I have to enter a password to return to what I was working on which is very anoying, I would like to extend this delay, how can I? I am using windows vista

Answer : right click on the desktop abd select personalize. Left click on the screensaver title, click in the box labelled wait and enter the number of minutes you want to wait for the screensave to become active. Click on ok to save the changes. Windows xp is very right click on the desktop and select properties, click on the screensaver tab and change the number of minutes you want for your delay.