I'm using Photoshop CS3 on Windows at work. When I run the program, even if no files are open, I get an empty gray window with some toolbars. At home, I'm running Photoshop CS4 on OS X. When I run the program, my toobars and any images I open later just float on the screen. This is very distracting (both visualy and functionally) as I have other windows and a colorful wallpaper in the background. I was wondering - can I turn this free-floating mode off and have a standard empty window that constrains all other elements? Is this a CS3 -> CS4 feature or Windows vs. OS X difference?