Amd sempron processor 2600

Install Speccy... this application displays all your hardware and drivers... Look under Motherboard and with the motherboard make and model type it on any search engine, and open the link leading to the mobo manufacturer website, and click on the support-downloads-drivers links... you will probably find the display driver available for download.

Or look in Speccy under Graphics... and with the graphics driver name search for the update...