Created attachment 57663 [details]
Valgrind output

Version:           0.9.4 (using KDE 4.5.4) 
OS:                Linux

Segmentation fault which happens when I try to start practice on this file. This file worked perfectly fine until I added last lesson(s), which are in the "Lessons" category of the .kvtml file.

Some diagnosis of the bug based on backtrace and valgring output by an expert from #kde-edu channel:
<tsdgeos> so you are removing the menu or something like that?
<zaroth> nope, I'm just loading the file parley created previously
<zaroth> and clicking "start practice"
<zaroth> that's really all that I'm doing
<zaroth> (however, to be honest, this start practice option is in a menu)
<tsdgeos> ok
<tsdgeos> i see
<tsdgeos> starting the practice
<tsdgeos> kills the menu
<tsdgeos> since it changes to a new mode
<tsdgeos> and then some handler still wants to access the menu

Reproducible: Always

Steps to Reproduce:
1. Turn on parley.
2. Load the vocabulary file which parley itself created before (it only happens with this vocabulary file, works fine with others)
3. Choose "Start practice" from the menu.
4. Crash.

Note: for unknown reasons it only crashed about 20% of the time using this steps when running under gdb (it crashes 100% of the time without gdb for me), which caused me some grief while trying to get the backtrace.

Actual Results:  
as written before,
4. Crash.