i cant find the driver for the ehternet controller,
the controller is built in the mother board

Support Information:
Device Type: BIOS / Motherboard
Manufacturer: Sony Electronics
Model: VAIO PCV RX540
Interface: Other
Operating System: Windows XP Professional
Age of Device: < 2 years old
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=965&qa5=1&qa7=1500&dp=2&qm0=VAIO+PCV+RX540&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Sony+Electronics+BIOS+%2F+Motherboard++VAIO+PCV+ RX540+Windows+XP+Professional+) | Research manufacturer Sony Electronics (http://members.driverguide.com/index.php?action=getinfo&companyid=965)

Sony support can be found worldwide on the web.... http://www.google.com/search?hl=en&q=Sony%2BVaio%2Bsupport&btnG=Google+Search