Bug: mouse not bound to game window

There is a big problem (big at least for an RTS and a MAJOR problem for multiplayers) for those who have multiple monitors:

The mouse is still not bound to the game window on multi-monitor setups.

The cursor travels beyond the screen during the game.

Sometimes (3 times I've gotten it to work) I can press escape/windows key to go to the desktop, and upon returning, the key is then bound to the game window.  This is not consistent though, or it would be a decent compromise while this bug is addressed.

This is a game breaker for me.

Will this be addressed in a patch?

(BTW, I have SinS, Entrenchment, and Diplomacy, and this wasnt a problem in any of those iterations of SinS)