Hi Everybody

I have a Dell Latitude cPX, my video card is ATI rage mobility 8m and until recently everytime i turn on the laptop the display doesnt display a full screen it displays nearly half of it. For example, say full screen is 8 X 11, my laptop displays about 6 X 9 display as a reduced size.
Any help or tips or explaination why this is happening will be greatly apprieciated.

Thank You