Q: My 2009 PC came with a version of Windows Live Photo Gallery that had a "fix" icon on the tool bar. Opening the "fix" gave me access to photo-editing capabilities, and under the "Exposure" tab there was a slider control for "Shadows," a useful function that could lighten only the dark parts of a photo. I recently updated to a new version of Photo Gallery, but I can no longer find the Shadows function. How can I get the old version of the software back?

- Mel Bina, Tucson.

A: I can see why you'd be willing to revert to the old software. The Shadows option's ability to affect only the darkest portion of a picture is impressive. But switching isn't necessary, because the Shadows option has simply shifted locations in the latest version of Windows Live Photo Gallery. To get there, open the program, double-click a photo to select it and click "adjust exposure" on the right to find the "Shadows" command. Drag the slider control to lighten or darken the dimmest parts of the photo.

Q: Videos don't play correctly on my 3-year-old PC. They stop every minute or so for several seconds. Is there a fix for this?

- Bryna Ben-Asher, Tucson.

A: The pauses occur because your PC is playing the video faster than the PC is receiving it from the Internet. You could get a faster Internet connection, or you could let the video finish streaming to your PC before you watch it. Streaming is complete when a "progress bar" beneath the video fills in.

Email tech questions to steve.j.alexander@gmail.com Please include name, city and telephone number.