Beta Bug 10421 - unreliable mouse behavior

[MarkShot]

The mouse is not working reliably. What do I mean:

* Some times when I click on a unit, the unit is simply not selected by the click.

* Some times when I roll the mouse wheel the maps does not zoom in or out (note: that the windows is active).

* Some times when I have a stack of three units and I try clicking to step between the selected unit, nothing happens.

Most of the time, the mouse handling can be reset by click on empty map hex, and then using the mouse again.

I have never seen this problem in any other version. If it comes to pronounced, I will probably go back and play the last official version.

Edge scrolling is working correctly, and I have no other issues using my PC.

Thank you.