IDL VM and Debian: 2: crash on run

[michael <linux@networkingnewsletter.org.uk>]

Has anybody played with IDL VM
http://www.ittvis.com/idlvm/

Presuming web services don't matter (see another posting), then any ideas why I get the following at run time:

michael@ratty:~/src/JVIEW$ /home/michael/src/IDL_VM/idl_6.3/bin/idldemo
IDL Version 6.3 (linux x86 m32). (c) 2006, Research Systems, Inc.

% Embedded IDL: Research Systems, Inc., IDL Demo System.
% Attempt to call undefined procedure/function: 'IDLRTMAIN'.
% Execution halted at: $MAIN$


THanks, Michael