If you cannot see anything when the computer is booting, then the monitor may be on the wrong input (if it has more than one input - you should be able to select this from a button on the front of the monitor). Cable could also be faulty, as could the monitor, or the PC. Try your cable on a know good system, or a different monitor on your PC, or a different PC on your monitor to find out which component is faulty.
Touche
November 2010
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