I recently purchased a SEGA ManxTT DX cabinet and I'm trying to connect my PC (well, really a Mac) to the monitor. The cabinet monitor is the Mitsubishi type and it accepts 4 BNC-style connectors (RGB+sync). My problem is that since I'm using a DVI to BNC cable, my computer doesn't recognize that it's connected to anything and defaults to 800x600@60Hz. This produces a flickering image but obviously not a usable picture. I have software that can adjust resolutions and has some really advanced settings (like pixel clock, front+rear porch, etc.) but I don't know what the monitor's native resolution and scan rate are. Is the original cabinet set to output 640i or some other custom scan rate? Thanks.