[Xymon] xymon rename oldhost newhost not working

So I am running this command: /home/xymon/server/bin/xymon 127.0.0.1 "rename prod-hostold prod-hostnew"

I press enter and nothing comes up just the prompt.

I check to see old rrd data, history data -- nothing. When checking history of a previous event I get "Historical status log not available" for the rrd graphs, I have to manually copy the files in data/rrd/<old host> to <new host> .

there must be an easier way of doing this!

tom.