Hi Michael,

I had already unchecked off all the "More Gesture options" of the trackball
and also experimented with a mouse to be sure it was really related to the fact of entering into the drawing space and not a trackpad reaction.

I also went into Mission Control and tried the Space options (and relogged) without success.
It doesn't trigger the sliding when the pointer stays in MoI's command or tools area but, as soon as the pointer gets in the drawing area it slides.

As Martin wrote, it's not a big thing as I also rarely get into full full screen with my apps.
It's just something I noticed while testing the freezing reported by other users.

Thanks,

Michel