Hi Anthony,
We got the same problem,to exit the menu, an "x" should be send to get into the cli. To achieve this, I have made a special device type template file for 2901 terminal servers. Just put the file in the NCM installation directory: NCM/DeviceTypes, on the poller where this node resides. The file is automatically selected when you choose "Auto Detect"
(OOB= Out Of Band). When a simular terminalserver devicetype other than a 2901 is being used, manually select this Cisco OOB devicetype.
Cheers!
Sef