1. When you colonize a new planet, on the Colonizing Event screen, an old picture from the previous Colonizing Event screen appears for a split second before it changes to the new correct one.
2. On the Starbases tab in the sidebar, when you click on a type of starbase (Shipyard, Economic, Mining) just after selecting the tab (when its set to All), sometimes it does nothing, and you have to click on another type for the button you originally wanted to start work again.
I have dual Radeons 5870s, Windows 8.1 and dual monitors.