Why is my BenQ's 21.6-inch LCD with 1680 * 1050 can not display table …

My FX5200 128M graphics card is an old card, the latest boy Fantian see on the LCD or buy a G2110W.21.6 the BenQ-inch LCD.Graphics, the control center to write the best resolution is 1680 * 1050.But by 1680 * 1050 resolution, when we can not show the desktop, which depends on the place must use the mouse to move in order to look at the whole, has been pondering for several days can not find the results.1440 * 900 with completely normal.Driven graphics have been updated to Up-to-date, or not.I am using the DVI connection lines can not zoom.How do ah? Prawns you have.Is not the card itself? Or set up my problem?

reset your display, and then set up