Thanks everyone for the ideas/suggestion.
I tested the notebook with an external monitor, and the display is good. So the problem is with the LCD display of the monitor.
I will check with the credit card company to see if it has any extended warranty.
I bought a Dell Inspiron 9400 notebook with 17'' display in 02/2006. The dispay now shows hundreds of red vertical lines, and too bad to read any thing. I called Dell support, I was told the warranty expired after one year.
I spent $1000, and used it for a little more than a year. What a poor...