Hello Ichabod

Yeah the installer thing was a mistake, I didn't realised it was in french, because it's my mother tongue so ...

As for the layouts size and position restore, there is an option in the Preferences for that : "Restore Geometry On Layout Change". Just put it on and it will restore sIBL_GUI size and position on layout change.
If you are motivated you can even change the 3 default layouts though it's not reommended

:
- Save a layout you like in one of the 5 slots.
- open sIBL_Settings.rc settings file ( in your home directory )
- replace the layouts attribute accordingly.
setsCentric_geometry : stores application size and position for the Library layout.
setsCentric_windowState : stores sub windows state.
setsCentric_centralWidget : stores the Database Browser state.
In the event of a total mess, you can delete the settings file, and restart sIBL_GUI, you will not loose much since the Sets / Templates are stored in another place

Let me know if you have issues.
KS