I reinstalled Windows xp after having problems with the internet, etc... After reinstalling, i tried to change the screen resolution from 640 x 480 to a higher resolution, but the arrow wont move in the settings tab of the display properties. When I click the advanced button, under the general tab and the display section, the DPI setting button is not available. Neither is properties button under the monitor tab. Under the color quality, there is only one option: Medium (16-bit). The low resolution is getting on my nerves, everything is huge and i need to scroll to read everything. Is there a problem with the driver or video card? How do i fix this?