4. Now it's time to choose one or more sources for your screensaver: Picasa, your Picasa Web Albums, one or more folders on your PC (which, admittedly, are probably already represented within Picasa, so this may not be necessary), and/or public sites. This last can be any RSS photo feed, like from Flickr and other sites. Just enable the sources, you want, then click Configure if you want to fine-tune the settings (which you'll need to do for PC folders and public sites).

5. Next, choose a visual effect from the pull-down menu. You can also use the slider to adjust the time between photos. When you're done, click OK.

6. Back at the main Screen Saver Settings menu, click Preview if you want to see the setup in action. You may also want to adjust the time before the screensaver kicks in. (10 minutes is the default, but I prefer something a little longer.) Click OK when you're done.

I think you'll love the Picasa screensaver, which effectively turns your PC into a killer photo frame (when it's idle, of course). And here's a bonus: If you have multiple monitors connected to your PC, the screensaver will take full advantage of them, showing a different photo on each one. Sweet!

Contributing Editor writes about business and consumer technology. Ask for help with your PC hassles at hasslefree@pcworld.com, or try the treasure trove of helpful folks in the. Sign up to have the e-mailed to you each week.