Powman

Does anyone know much about GameGuard? It comes equipped with many japanese games such as Gunbound, SilkRoad online and more. Every time I try to play SilkRoad online, GameGuard starts, but then says: GameGuard could not run properly. Close all programs conflicting with Gameguard or try rebooting your computer. I've tried all without success. I fear it may be my firewall, but I can't seem to reconfigure that or bypass it. It's a router firewall, on a D-Link wireless router. I've gone through the D-Link utility and found no resolution to my problems or access to the firewall. Thanks for all the help.