Spell checker not working properly

Zim version 0.65
Windows 7 (from source)
pygtk-all-in-one-2.24.2.win32-py2.7

For some reason, when loading a page, if the spell checker is already enabled, it won't work so you have to disable and re-enable it.
Here's my ugly fix:

on line 141 add:
checker.disable()
checker.enable()

in "on_open_page" conditional "if checker".

Also, providing a portable/installable package with the dependencies for Windows would be awesome. It's extremely hard to install it properly on Windows. Ideally an installer where you can select to install plugins dependencies, but a simple huge portable package is enough too. I wonder if there's a way to use pyinstaller to do that.

This software is fantastically good, I'm using it almost daily, good work! :)