Hi all. I upgraded my MacBook Pro to Leopard a couple of weeks ago and have had no problems at all. Last weekend I upgraded my 24" white iMac and now whenever I wake it up from sleep my desktop is unresponsive. The icons on the desktop are just like a part of the wallpaper. I can't click on them. The machine is fully responsive, I can get to everything by using the Finder but the desktop is dead. I also installed the 10.5.1 update. I did an upgrade from Tiger and it went really well. So I didn't do an Erase and Install. Anyone else have the same problem? Cheers.