Change of ip in wireless networks - urgent!

hi everyone!
i am developing an application using rmi in a wlan network and face the following problem:
my application is distributed among a notebook and a pda, uses rmi for all transfer and method invokation and works fine after setup.
but when my pda changes its ip address (dhcp), problems come up.
i do rebind and export correctly, but still receive a java.rmi.ConnectException because rmi still tries to send the objects to the old ip address, which is not valid any more.
does rmi cache this ip somewhere? how can i work around this problem?
what do i have to do to make rmi recognize the new ip?
any cure???
thanks for help!!
kirk

hi ejp!
thanks for reply, but i do exactly want you tell me to do:
program works like this:
export object
rebind
lookup
change of ip new object
export
rebind
lookup stub
i cannot unexport the old object, since i have to use personal java on the pda, so i create a new object and still receive a connect exception.
rmi cannot make a connection to old ip address and is not recognizing that my device changed its location.
still any ideas?
thx a lot!
kirk

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