How about this:

Bring up the machine in question, let it register and obtain the bad IP.
Shut down the machine without unregistering it.
Plug in a cheap Linksys router, or some similar box, connect the PC to
the router and rerun the DHCP registration.  This should register the
MAC of the router and give it a different IP.    Of course now, the PC
will be behind a NAT firewall, but I wouldn't think that should present
a problem in most scenarios.



Al Puzzuoli                              
 
Michigan State University
 
Information Technologist                                       
http://www.rcpd.msu.edu
 
Resource Center for Persons with Disabilities
 
120 Bessey Hall East Lansing, MI  48824-1033
 
517-884-1915