[HECnet] Cisco WTF

So I'm re-configuring this 1841 to ship it to Ian. Config is mostly done except for one minor detail. I can no longer enable and configure DECnet. Any idea what this would be? This is the router than ran all my DECnet tunnels and it was no problem at all to setup. Now after a 'wr erase/reload' it will no longer allow me to setup DECnet! hub#conf t Enter configuration commands, one per line. End with CNTL/Z. hub(config)#dec? % Unrecognized command -brian