I've recently been running displayfusion pro and several times now if I go AFK for a length of time and return I find several error messages stating:

"An error has occured while setting your new Wallpaper. Parameter is not valid."

I cant find an application log to figure out what file(s) is/are causing the issue. The issue doesn't seem to have any real negative but I thought I'd report it.

Yay, back to support!

The issue is that some files either got corrupted, or aren't valid pictures.

Easiest fix: Go to the folder in explorer, set the view to tiles, and look for any file that does not say the resolution under the name. Presto, fixed.

If all the files have the resolutions, look again, and if after a second sweep there are still no screwed up files, open one file with the windows picture and fax viewer. Go through the entire folder using the next image arrows provided by the viewer, and if one doesn't come up, delete it.

If after that you still have the issue, post back here and I will take it from another angle.

I'm having the same problem with a specific image, but it works in every other program I use to look at it. Any other ideas?

Edit: Scratch that, I found the problem. While the image does have a WidthxHeight, the values for the DPI both vertically and horizontally were set to 0.