Free Photo Screensaver
Click here to get the Google Photo Screensaver for free. It is part of the Google Pack and you can download all of it or just the screensaver, it’s up to you. Picassa is also included and can help you organize and locate all of your image files for you.
The Google Photo Screensaver will allow you to enjoy photos from your personal collection in full screen or as a collage. To configure your screensaver:
Right-click on your desktop and select “Properties” from the menu that appears
Select the “Screen Saver” tab from the “Display Properties” dialog
From the “Screen saver” drop-down, select “Google Pack Screensaver” then click the “Settings” button
From the settings window, you can select the transition, timing, and selection of photos in your screensaver.
The Google Pack Photo Screensaver makes it easy to display your favorite photos when your screen is idle. To enable it, go to Start menu > Settings > Control Panel > Display and select the “Screen Saver” tab. From the “Screen saver” drop-down, select “Google Pack Screen Saver” then click the “Settings” button. From the settings window, you can select the transition, timing, and selection of photos in your screensaver. At this time, the Google Pack Photo Screensaver is only available through Google Pack. Source: Google Pack Help