Workstation cloning and retaining the machine ID on a different machine?

Hi,

     I just installed vmware workstation for windows on 2 different machines.  I am just testing the clone function.  So, I basically 'cloned' the first machine and opened it up on the second machine.  The machine ID changed?  Any thoughts on how to retain the same machine ID?  Just new to this and testing...

Thanks for everyone's help!

Jason