DHCP and Leopard Server

Hi, I am having a lot of problems with my DHCP on Leopard Server. I never experienced these problems when running Tiger Server. My setup is thus: Leopard Server 10.5.2 I am running DHCP for two subnets - 192.168.0/24, 192.168.1/24 I have static maps on both subnets. The DHCP server will dynamically issue I.P. addresses for computers that have a static MAC address map, but will not issue an address for new computers entering the network that hasn't had a map created. Once the map is created it is fine. Each subnet is meant to be serving I.Ps from a different network cards (ie en0 and en1), but computers on the 192.168.0/24 subnet do not receive a gateway. Have I done something wrong? Does this make sense to anyone. Has anyone else experienced similar.