Formeditor crashing whole developper 7.1 on Ubuntu 11.10

Hi all,
as mentioned in my previous topic, I finally got my Servoy 7.1.0 installation on Ubuntu 11.10 sorted out. The developper will start now as expected and all windows I used so far seem to work properly, except the forms editor.
As a test I have imported the _START_HERE solution. I can edit code in the script editor, can open the tables in table editor, but whenever I try to edit a form I quickly see the form editor flashing after which the whole developper disappears without any further message. I also do not get any entries in servoy_log.txt. And the same happens on another PC with Ubuntu 12.04.
Any ideas, where I should look for the problem? I am now running servoy using an installation of xulrunner version 3.6.28 and have set the path in servoy.ini accordingly.
Greatly appreciate any help,
regards
Peter

I got some more info on my problem. I installed a complete new partition with Ubuntu 13.04, copied the XULRUNNER directory and made sure servoy.ini is pointing to the correct path.
But did not help. It seems everything is running except form editor. The form editor quickly flashes and than the complete servoy instance crashes. I am desperate.
Which other information do you, need to make an informed gues on what I am doing wrong?

Thanks for your help
Peter

open a console where the servoy binary is, and run servoy from there,
and check the output for the errors; if it is a native code crash, I think it
will create also log files in the same folder as the servoy binary;
you may also check the log from the workspace/.metadata folder;
please post the logs you find, so we can check what can be the problem