I have a number of computers running 17" Monitors. Some of these (1 or 2) have a flicker on the monitor when in use. While it's annoying it's still possible to use the monitor. I have asked an electrician and he said there was nothing wrong with the power in the building it must be a monitor problem. I have checked with the supplier of the monitors and he said it must be an electrical supply problem. Recently I have purchased two new computers, for two new workstations. These new computers have 15" flat screens. At the moment these are unusable because of the flicker. Can anybody help me please. There doesn't appear to be any connection between the monitors that exhibit this problem. Live Long and Prosper