However I think you should link each Grid release with a specific version of libAce. You are the first one to ask people not to use alpha release of grid (and you are sooooo right). That would prevent us from thinking Grid is the responsible of the bad behaviour.
After all, we all behave like end-users: when something doesn't work, our first thought is to blame the manufacturer, not his subcontractors.
Quote from Phanx
Grid's options have never been integrated in the standard Interface Options window, so I'm not really sure what you're talking about.
I can assure you there was a release of Grid on Curse that was integrated in the standard interface. It stroke me because i found that new feature was VERY cool.
It was around cata release (4.0.1 or 4.0.3 i don't remember exactly). Then a new release was posted on curse with the new tabbed window.
That's why I was quite bothered : it seemed like a step backward to me.