I have played one game of the GCIII Alpha, and have an issue: my wireless mouse will not move the map when I move the cursor to the edges.  I have been using the zoom-in feature to auto focus on the map in order to play the game, plus the double click on the planet ability to navigate, but with a larger map, using the mouse wheel like that would become tedious fast. 

I am using the wireless Razor Naga Epic mouse with Windows 8.1.  Do not have a problem with any other game or application with this mouse, ever.  All drivers for hardware and software are updated.  I looked at the game settings to be sure that mouse scrolling was available (it is) and fiddled with the speed settings to see if that had an effect (it didn't).

I will give feedback later on the UI, but for now, this is a major bug in my opinion.