Even after my effort to maximize space for window display, I just find that sometimes the bottom part of the windows, where the confirm and cancel buttons are resided, are hindered from display due to reduced vertical resolution in netbook. After surfing the Internet, I get the following temporary solution: When the mouse is over the window, hold the "Alt" button and drag the windows. Then you can move the window top beyond the top of the screen, and the bottom part can then show up. Source: http://www.linuxforums.org/forum/linux-laptops-netbooks-minibooks/83948-screen-resolution-default-window-resize.html