Desktop Icons Disappear In 12.04 LTS
After the screen goes to sleep, the desktop icons are gone when the screen wakes up.
(I also experience the same effect when I execute any program that requires Wine.)
Also, the second monitor is completely lost at the same time.
The icon bar on the left still flies in and out and works just fine under these conditions.
If I sweep the mouse into the upper left corner of the screen, the desktop icons all appear for a split second--but then they are gone in a flash!
A log out and log in restores proper functionality.
The computer is a Dell Precision M70.
The setup is dual external monitors (via Dell port replicator), using the default NVidia drivers installed by 12.04 LTS.
The default drivers work better than any of the proprietary options; that's why I am using them.
I'm using Gnome.