As i added the new AGP card to PCI slot & by disabling on board AGP at cmos settings, above problem is solved. No use of onboard AGP, what about Realtek audio engine??????, 6channel audio???intel is misleading the people, those who have faith & trust on them, i spend another Rs.450 towards AGP card[navtech-simple agp card] to get 6channel/5.1 channel i have to fix creative or some other card at Rs.2500+ who will pay for this, waitng for Intel's reply