One thing I've noticed with the current version is that it is a little difficult to get information on a town building via mouseover.  Half of the time, mousing over a structure just shows the card for your city, not the structure itself.

Click on the structure and the card *might* switch to the structure, might not.  I've since found a way to switch back and forth but it's not very intuitive.

And I'm still having a little alt-tab trouble even though I'm on an Nvidia card.  Works most of the time but fails more often than I'd like.  Win 7 64