Since I set up my T40 laptop with a dock and an external monitor, I have to frequently change the resolution from the laptops native 1400x1050 (yes, that high) to 1280x1024 (what my monitor can handle). Up til now I've been using the Desktop config tool to do this (right click on desktop, Configure Desktop->Display->Screen size. Whaddapain.
Folks on #kde pointed me to a handy little tool called 'krandrtray', which puts a small icon in your systray. Clicking on it brings up a pulldown menu (see above) where you can change many of your screen settings, such as resolution and frequency. Very handy!
I noted that krandrtray was not showing up in any of the menus, so it was a little tricky to find. I suggest using Alt-F2 to launch it, or just launch it from a Konsole.
