I was viewing a group of photos, 12 full-size wallpapers, in the Picture Gallery and decided to try out the slideshow feature. It worked fine until I chose, "Collage" under the Themes options. Now, all I get is a blank black screen. Right-clicking within the screen does nothing and the only way to get out is to use the "Escape" key on the keyboard. My graphics card has a Windows Experience score of 5.9 (EVGA GeForce 7600 GT w/ version 100.64 drivers).
How can I reset the Slideshow back to "Fade" or some other working Theme?
And why doesn't the "Collage" theme work?