Irritating display I turned on my COMPAQ 7550 monitor yesterday. and the display was very unsteady as in you cannot focus on letters because the whole screen is shaking as if vibrating and is very irritating to the eyes. the whole screen keeps moving up and down very very rapidly. please help

This is a sure sign in CRT screens that it is on it's last hours of life. I saw this in one of my customer's screens and I told him it was probably dying, it died the next day. You could try opening the menu and hitting degausse or whatever it's called. That helps sometimes, but if this is doing this repeatedly, it means your screen is dying.