Qmmander: Ghost child window

Created an attachment (id=5154)
DebugLog

r47656
Vbox

1)Download Qmmander from:
http://code.google.com/p/qmmander/downloads/detail?name=Qmmander_0.1.0-a5-7_01102010.zip
2)Run it.
3)Select any file in the left explorer window
4)Click on the Button "Compress.." (A brown box with a green arrow going into in the Toolbar)
5)The Main Window will lose the focus, but no other Window is created.
6)Just hitting ESC makes the focus coming back to Main Window
(Maybe the Main Window is sending the focus to a Ghost child window?)
(On Windows when hitting the Button, a Child window opens and takes the focus until you close it with Cancel or hitting ESC)

I tried to catch Exceptions but there isn´t any.
DebugLog attached(but seems normal).