Re-complile emonpi-dedicated sketch breaks LCD on emonPi

Hallo

I use Arduino 1.6.7 on Windows and the libraries mentioned in sketch "emonPi_RFM69CW_RF12Demo_DiscreteSampling".

I did not add any changes to the original sketch which I got from "/home/pi/emonpi/Atmega328/emonPi_RFM69CW_RF12Demo_DiscreteSampling" and it complies successfully with the following warning:
-----------
...\Arduino\libraries\jeelib-master\RF69.cpp:106:39: warning: 'prog_uint8_t' is deprecated [-Wdeprecated-declarations]

 static void initRadio (ROM_UINT8* init) {

                                       ^
Sketch uses 19,056 bytes (59%) of program storage space. Maximum is 32,256 bytes.
-------------

Once uploaded to emonPi via "emonpiupdate" the messages put to the LCD by the sketch (emonPi V2.00... etc) are getting scrambled and the messages from raspberryPI (Ethernet: YES... etc) are not displayed anymore....
Also the display and the reset button are no longer working. My sketch has 53621 bytes.

If I upload the original "emonPi_latest.hex" (53670 bytes) all is working fine again. 

Any idea what I need to change to successfully compile the original sketch? Is the baud-rate in the sketch (38400) really the correct one?

Many thanks

Fredi