Don't worry, just three of them for now... those of you who know me from the SE4 forums will know the long lists I will often post!
What's the difference between Armor Piercing damage and Armor Negating, anyway?
There really ought to be a count of units belonging to each empire in each province... the blue and red rectangles are useful, but you still can't see how many units you have in an enemy province! Using the empire status report is kind of an awkward workaround... you should be able to see all visible units *on the map*!
The game graphics and fonts will sometimes be corrupted by alt-tabbing...