After I log in, my desktop will be covered by dozens of kblankscrn.kss windows. Just now, it was 21 such windows filling my entire desktop. Other times, it seems to be a different number of windows. I do not have such windows open when I log out, so I am not sure what they are being restored in connection with. I am glad to provide more details but I don't know what info is needed so I am starting with just an image showing the problem.
Steps to Reproduce:
1. log out -- I shut down or reboot to be precise.
2. start up and log back in
desktop is covered with many kblankscrn.kss windows
no kblankscrn.kss windows. zero.
This does not happen every login. It seems random. It happens about half the time.
another image showing the issue: http://imgur.com/PkDNUiZ
*** This bug has been marked as a duplicate of bug 224200 ***