Installing OpenLinux 36 Getting Started Guide • IntelliMouse • ThinkingMouse • GlidePoint • NetMouse • NetScroll 2. Select Emulate 3rd button to allow your two-button mouse to be able to emulate a third button (the middle one). 3. Choose Next to continue. NOTE: If you have problems with your mouse, you can use the Tab, arrow, and Enter keys to select options throughout the installation process. Configuring the Graphical System You use the next few screens to configure your Graphical System (the X Window System). The first screen, shown in Figure 19 configures your keyboard.system. FIGURE 16.  Here you select and test the keyboard model and language layout that you are using. To configure your keyboard information: 1. Select the model of keyboard that you are using. 2. Select the layout (and language) of your keyboard.