(edit)version beta5: problem solved !
the error was with beta4
choosing other languages than english, the folder "error reports" shows up with the translated name, the number of existing items is shown, but trying to read one of them it says "folder not found".
(once you know it, it is not a problem, just switch to englisch language and it works)
it would be nice to have a list of the type:
feature #1 .... done
feature #2 .... not yet working
does it exist somewhere ?
thanks for the ongoing work towards release 1.0 :-)