Question about Dell Dimension 4700 PC Desktop
You can try the monitor on another computer to verify it is the monitor and not the display card at fault.
I'm assuming this is an LCD monitor. If you are sure the monitor is the problem, then your monitor's display driver circuit is probably getting close to failing. When one of the three colors (red, green, blue) becomes intermittent, the screen takes on the hue of the working colors. In your case it sounds like the blue is starting to fail.
A repair technician may be able to replace the circuit.
Posted on Jul 22, 2010
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Posted on Jan 02, 2017
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