Do you have an HDTV ? Do you often having video presentation using LCD Projector from your laptop?
Get bored ?
Why don't you utilize your HDTV ? I mean not using RGB cable anymore. This time you can utilize the HD Quality at 720p on your HDTV.Just try Atlona AT-HDPiX USB-to-HDMI converter.Compatible with both PC and Mac. It was designed to provide the easiest way to view content on any HDTV at maximum resolution 0f 1600x1200 signal or HD content at 720p.
More see :
Atlona AT-HDPiX USB-to-HDMI Converter, Bring HD Quality for Your Presentation