Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
This won't fix the problem, but try this to see if it works. Save a picture to your desktop and then either two-finger tap it or right-click it (whichever fits your input mechanism) and select "Set Desktop Picture" to see if that will at least give you a new image to look at.
It occurs to me. I know what the issue is. A few weeks ago I messed up my OS and I ended up having to reinstall a lot of apps. iPhoto is one of them but I don't have the iLife USB drive so I had to copy the iPhoto app from my wife's laptop to mine. Is it possible to install iPhoto from the App Store or do I have to wait until I get back to America where my USB drive is?
