I've updated the RF12demo to include a revision number. The latest code now announces itself as:
[RF12demo.3] A i1 g212 @ 433 MHz
Note the ".3" which I'll increase on each new release to help with debugging and troubleshooting.
Sooo.... please get the latest update from the code area.
(I've also updated JeeMon to ignore these suffixes in the output when looking for matching host.tcl scripts to launch)