Below on this sony page, you will find links for downloading Vaio SR490 driver you need.
A Millennium P750 driver is an important program for your sony laptop or computer, as it promotes correct functioning of your Telme E1000 device. Moreover, a driver can promote correct functioning of any other device, e.g., a printer, a scanner or a display card. As a rule, your Asus P505 unit is already furnished with a CD with the proper Vaio SR490 driver set. If the CD is lost, please take advantage of the Asus P505 link for Vaio SR490 downloading.