My computer was in "sleep" mode when I removed the hard drive for a quick inspection.
I sat the hard drive down and left for a few.
When I came back, I forgot I took the hard drive out and turned on the computer, bringing it from "sleep".
I got buffer errors and location errors.
I tried to put my computer back to sleep, but couldn't so I simply turned it off.
I put the hard drive back in and and computer went through the normal boot up procedure.
The login back ground was fine, but when I logged in, the desktop background was a blank, bright blue screen; i.e. my old desktop background was changed.
All my other data was retained, except for the "sleep" save data. That's ok because those files were already saved.
Also, when my computer locks the screen and then I try to enter my password, the background where the login box is, is now black. Fedora usually shows your desktop wallpaper for the unlock dialog box.
Why did fedora change my background?
OR, does Fedora 15 simply change the screen wallpaper location to null before it goes into sleep mode, using the sleep save data to restore the wallpaper location?