Hey there, I upgraded my 10.5 installation to SL the day it came out, so that I kept all my settings and files. The problem I'm having since is very very annoying, and I can't seem to get rid of it. I searched the whole Internet (or so it seems) and haven't found anything about it. The problem is: When I have an open window, let's say Firefox, and I bring to front another one (let's say Adium) or launch an app, the new window hides the previously open one. For example: I have Firefox open, I click on Adium in my Dock: The Adium window is brought to the foreground, but the Firefox window is gone (hidden). This is really annoying when I try to copy files, drag'n'drop stuff or copy from another window. The weird part of it is, it's only since I have SL, it was never here before. I've got all updates installed. Do you guys have any ideas? Cheers!