Many players will output the OSD only on composite output. So, even though you are using component for actual viewing, you may need to connect the composite to the Adcom, as well. Check the player's manual for that.
No on-screen display for Adcom processor
I have an Adcom GTP-860 processor connected to a Sony Wega 30" widescreen television via component video cables (the DVD source is connected to the Adcom by component video cables.) I cannot see the Adcom on-screen display (OSD) for system setup. There is an option for PAL or NTSC which may affect the OSD, but I am not sure which to select. The otherwise excellant manual has no OSD troubleshooting. Any suggestions?