Just bought a new XPS 420 quad core pc with ATI Radeon HD 3870 x2 graphics card.at the moment the card is connected to the monitor via the dvi cable.(white dvi from the card to dvi into the monitor)With the card i received an ATI adaptor with female HDMI and male dvi.how do i utilize this adaptor to get to HDMI quality as i am very confused?Thank you for your help and sorry for my ignorance.