I have a narrow vision of the screen, there arc!

I know my screen is old, not-for a host to replace it (in order to save money), bought in 2003, and now the boot is usually narrow, the screen is also about the arc, and sometimes inside concave, convex and sometimes out.Wait Desktop is coming on a normal change.To die today, how do not return to normal??? Why???
Not say you want me to transfer the screen width and length, these values are narrow screen And under normal circumstances are the same! !

display fault, it is easy to repair, was a concrete tube or pipe line is broken, I can not tell, I have nothing to do with the maintenance However, the cost of repairs will not be high-value, it is estimated that less than 30 yuan can get.This is the picture tube aging.Maintenance should be taken.Or to save money to buy second-hand Taiwan `Let's display should have a menu button, and go in accordance with the following After a screen to choose according to the +, – you try to transfer key