5-4 Solving System Problems There is constant movement on the screen.A magnetic field is affecting your monitor. Move anydevices (fan, motor, another monitor) that generatemagnetic fields away from your monitor. The screen display is fuzzy or flickering; graphicscharacters or garbage appears on the screen.Check that your monitor is set up correctly and that allconnections have been made.Check that the video refresh rate and video driver arecorrect.Click the right mouse button anywhere on the Windowsdesktop and a menu appears. Click on Properties and theDisplay Properties window appears.Keyboard/Mouse ProblemsCheck the following problem to see the possible cause andsolution. Mouse or keyboard does not respond.You may have connected the mouse and keyboard afterturning on your system. Turn the system off, make surethe mouse and keyboard are connected, and turn thesystem back on. Image appears on screen but nothing happenswhen you use the mouse or keyboard.Tighten the keyboard or mouse cable connection.If this does not help, turn off the system, wait five ormore seconds, and turn on the system.