I've been trying to change some of the icons in my system. I first tried the GUI. This changed the icon in the start menu, on the panel, and on the desktop, but it doesnt change the icon in the left-hand corner of open windows or in the task bar in the panel. I then went in and did it manually by editing the .desktop files in /usr/share/applications. Same thing...the icons in Openbox windows are the old ones. My guess is that Openbox is looking elsewhere for icons, but I dont really know. Does anybody have an idea?