I have an Optoma EP721. Here's the projector manual: http://www.projectorcentral.com/pdf/projector_manual_3942.pdf I've been able to connect my laptop to my projector with no problem using a VGA cable. However my videogame systems are another issue. They have the standard-def 3RCA composite cable (yellow composite video and red+white stereo audio). My projector has these input sources: VGA DVI (doesn't work with standard def) S-Video The problem I'm having it converting RCA to VGA or S-Video. I have a separate speaker system, so I'm only concerned about the composite video. Anyway I need help finding a cable (or adapter) to convert RCA (or just composite video) to VGA or S-Video. Every cable I've encountered so far does the opposite and converts to RCA; not the other way around.