INFORM not working properly?

[Craig]

I am running server 3.0.1. I have a conf file that looks something like:

option domain-name-servers 1.1.1.1 2.2.2.2 3.3.3.3;
subnet 10.0.0.0 netmask 255.255.255.0 {
    host xp-laptop {
       hardware ethernet 00:aa:aa:bb:bb:bb;
       fixed-address 10.0.0.123;
       option domain-name-servers 10.0.0.1 10.0.0.2;
    }
}


etc...
The client (XP Pro) does a request and gets the correct information 
(i.e. ip=10.0.0.123 and name server 10.0.0.1,10.0.0.2). However, about 2 
minutes later, XP sends an "INFORM" packet. The server responds with the 
correct IP (.123), but with the "global" name servers 1.1.1.1, 2.2.2.2, 
3.3.3.3.

If the client does a release and renew everything is fine, but it looks 
like every INFORM request is answered only partially correct. (I.e. the 
correct IP is returned, but the other options set in the host block are 
ignored.)

Has anyone seen this before?

TIA!
Craig

P.S. I have a tcpdump showing the original "REQUEST" and the subsequent 
INFORMs and ACKs.