When the screen first starts loading up it is ok but when it loads into windows it then has red lines across it when we open a window up they become blue lines across it with the lines staying in lilttle groups.
You likely have a bad 'controller' board, the one that converts the analog monitor signal into Row and Column addresses to tell the screen which pixels to light up, and which color. You may have a loose connection where ribbon cables connect to the board or the LCD panel, but you'd have to take it apart to see.
Likely the monitor part would be prohibitively expensive when you add in labor costs. If I owned it, I'd take it apart a bit and check for loose things...
tom
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