My current setup is as follows: -SEGA Genesis Model 1 connected to XRGB-3 via official SEGA-branded A/V cable -SEGA Saturn is connected to XRGB-3 via official composite cable -XRGB-3 is connected to PlayStation 3D Display via DVI-D -> HDMI -FPGA mode is currently set to B0 and I've tried B1. -I've tried a VGA connection to an LCD monitor and still no luck. *My Saturn (round button model) will work perfectly fine through B0 FPGA mode, though. Nothing will show in B1 mode.
Sorry I can't help as I don't have one of the XRGB-3 units but why are you using AV composite? :suspicion: