•The worst-case scenario is that the operating system has been damaged, e.g. by a virus. If this is the case, execute a "complete reinstallation of the operating system".

•If you correctly follow the instructions under "Complete reinstallation of the operating system" and reinstallation is still not possible, there could be a defect in one of the system components such as the power supply unit or on the hard disk. If you do not have the necessary technical expertise, repairs of this magnitude should be carried out solely by a service engineer.

Nothing appears on the screen

•Make sure that the monitor is switched on.

•Make sure that the computer and the monitor are connected correctly.

•Are you using a screen saver? Press the SHIFT KEY to restore the display.

•Are you using the automatic power-saving function? These functions switch the computer or the video display unit to power-saving mode. Press any key or move the mouse to leave this mode. You will find further information on power- saving functions in your mainboard manual.

•Adjust the contrast and brightness of the image.

•Disconnect the power and signal cable on the monitor. It could be that the signal cable pins are not correctly aligned.

The keyboard is not responding

•Make sure the keyboard is connected correctly.

•The program with which you are working may be "hanging". Press Ctrl+Alt+Del to end the task. If nothing happens, restart the computer.

The image is distorted

•Another unit nearby, e.g. a printer, may be causing the problem. Move any units which produce strong magnetic fields away from the monitor.

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