Version:            (using KDE 4.2.2)
OS:                Linux
Installed from:    Ubuntu Packages

If the taskbar is maximized and screen is switched to a smaller resolution, the taskbar sizes down to the new size of the screen, which is what it should do.

But when the screen resolution is increased the taskbar doesn't maximize automatically which costs half the size of the taskbar when switching from 1920 pixels to 1024 pixels and back.

It's quite annoying to have to do five klicks whenever one switches the internal and external monitor of a notebook. :(