Customer Self-Service Portal

Do not re-register agent after re-install a server

From time to time we reinstall our terminalservers (50). After a re-installation the server register in the monitoring portal again. This is a problem because there are two servers in the monitoring with the same name! Is there a workarround (registry key or something else) available to do NOT reregister the agent and map the server to the "old" entry?

How does other customers handle this?
Regards
Patrik